128950920

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{461}}^1$

素因数の和:525

約数の個数: 256

約数和(自身を含む): 505612800

約数和(自身を除く): 376661880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 37, 40, 42, 45, 54, 56, 60, 63, 70, 72, 74, 84, 90, 105, 108, 111, 120, 126, 135, 140, 148, 168, 180, 185, 189, 210, 216, 222, 252, 259, 270, 280, 296, 315, 333, 360, 370, 378, 420, 444, 461, 504, 518, 540, 555, 630, 666, 740, 756, 777, 840, 888, 922, 945, 999, 1036, 1080, 1110, 1260, 1295, 1332, 1383, 1480, 1512, 1554, 1665, 1844, 1890, 1998, 2072, 2220, 2305, 2331, 2520, 2590, 2664, 2766, 3108, 3227, 3330, 3688, 3780, 3885, 3996, 4149, 4440, 4610, 4662, 4995, 5180, 5532, 6216, 6454, 6660, 6915, 6993, 7560, 7770, 7992, 8298, 9220, 9324, 9681, 9990, 10360, 11064, 11655, 12447, 12908, 13320, 13830, 13986, 15540, 16135, 16596, 17057, 18440, 18648, 19362, 19980, 20745, 23310, 24894, 25816, 27660, 27972, 29043, 31080, 32270, 33192, 34114, 34965, 38724, 39960, 41490, 46620, 48405, 49788, 51171, 55320, 55944, 58086, 62235, 64540, 68228, 69930, 77448, 82980, 85285, 87129, 93240, 96810, 99576, 102342, 116172, 119399, 124470, 129080, 136456, 139860, 145215, 153513, 165960, 170570, 174258, 193620, 204684, 232344, 238798, 248940, 255855, 279720, 290430, 307026, 341140, 348516, 358197, 387240, 409368, 435645, 460539, 477596, 497880, 511710, 580860, 596995, 614052, 682280, 697032, 716394, 767565, 871290, 921078, 955192, 1023420, 1074591, 1161720, 1193990, 1228104, 1432788, 1535130, 1742580, 1790985, 1842156, 2046840, 2149182, 2302695, 2387980, 2865576, 3070260, 3223773, 3485160, 3581970, 3684312, 4298364, 4605390, 4775960, 5372955, 6140520, 6447546, 7163940, 8596728, 9210780, 10745910, 12895092, 14327880, 16118865, 18421560, 21491820, 25790184, 32237730, 42983640, 64475460, 128950920]

約数ペア:

[(1, 128950920), (2, 64475460), (3, 42983640), (4, 32237730), (5, 25790184), (6, 21491820), (7, 18421560), (8, 16118865), (9, 14327880), (10, 12895092), (12, 10745910), (14, 9210780), (15, 8596728), (18, 7163940), (20, 6447546), (21, 6140520), (24, 5372955), (27, 4775960), (28, 4605390), (30, 4298364), (35, 3684312), (36, 3581970), (37, 3485160), (40, 3223773), (42, 3070260), (45, 2865576), (54, 2387980), (56, 2302695), (60, 2149182), (63, 2046840), (70, 1842156), (72, 1790985), (74, 1742580), (84, 1535130), (90, 1432788), (105, 1228104), (108, 1193990), (111, 1161720), (120, 1074591), (126, 1023420), (135, 955192), (140, 921078), (148, 871290), (168, 767565), (180, 716394), (185, 697032), (189, 682280), (210, 614052), (216, 596995), (222, 580860), (252, 511710), (259, 497880), (270, 477596), (280, 460539), (296, 435645), (315, 409368), (333, 387240), (360, 358197), (370, 348516), (378, 341140), (420, 307026), (444, 290430), (461, 279720), (504, 255855), (518, 248940), (540, 238798), (555, 232344), (630, 204684), (666, 193620), (740, 174258), (756, 170570), (777, 165960), (840, 153513), (888, 145215), (922, 139860), (945, 136456), (999, 129080), (1036, 124470), (1080, 119399), (1110, 116172), (1260, 102342), (1295, 99576), (1332, 96810), (1383, 93240), (1480, 87129), (1512, 85285), (1554, 82980), (1665, 77448), (1844, 69930), (1890, 68228), (1998, 64540), (2072, 62235), (2220, 58086), (2305, 55944), (2331, 55320), (2520, 51171), (2590, 49788), (2664, 48405), (2766, 46620), (3108, 41490), (3227, 39960), (3330, 38724), (3688, 34965), (3780, 34114), (3885, 33192), (3996, 32270), (4149, 31080), (4440, 29043), (4610, 27972), (4662, 27660), (4995, 25816), (5180, 24894), (5532, 23310), (6216, 20745), (6454, 19980), (6660, 19362), (6915, 18648), (6993, 18440), (7560, 17057), (7770, 16596), (7992, 16135), (8298, 15540), (9220, 13986), (9324, 13830), (9681, 13320), (9990, 12908), (10360, 12447), (11064, 11655)]