18421560

素因数分解:

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

素因数の和:518

約数の個数: 128

約数和(自身を含む): 63201600

約数和(自身を除く): 44780040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 37, 40, 45, 54, 60, 72, 74, 90, 108, 111, 120, 135, 148, 180, 185, 216, 222, 270, 296, 333, 360, 370, 444, 461, 540, 555, 666, 740, 888, 922, 999, 1080, 1110, 1332, 1383, 1480, 1665, 1844, 1998, 2220, 2305, 2664, 2766, 3330, 3688, 3996, 4149, 4440, 4610, 4995, 5532, 6660, 6915, 7992, 8298, 9220, 9990, 11064, 12447, 13320, 13830, 16596, 17057, 18440, 19980, 20745, 24894, 27660, 33192, 34114, 39960, 41490, 49788, 51171, 55320, 62235, 68228, 82980, 85285, 99576, 102342, 124470, 136456, 153513, 165960, 170570, 204684, 248940, 255855, 307026, 341140, 409368, 460539, 497880, 511710, 614052, 682280, 767565, 921078, 1023420, 1228104, 1535130, 1842156, 2046840, 2302695, 3070260, 3684312, 4605390, 6140520, 9210780, 18421560]

約数ペア:

[(1, 18421560), (2, 9210780), (3, 6140520), (4, 4605390), (5, 3684312), (6, 3070260), (8, 2302695), (9, 2046840), (10, 1842156), (12, 1535130), (15, 1228104), (18, 1023420), (20, 921078), (24, 767565), (27, 682280), (30, 614052), (36, 511710), (37, 497880), (40, 460539), (45, 409368), (54, 341140), (60, 307026), (72, 255855), (74, 248940), (90, 204684), (108, 170570), (111, 165960), (120, 153513), (135, 136456), (148, 124470), (180, 102342), (185, 99576), (216, 85285), (222, 82980), (270, 68228), (296, 62235), (333, 55320), (360, 51171), (370, 49788), (444, 41490), (461, 39960), (540, 34114), (555, 33192), (666, 27660), (740, 24894), (888, 20745), (922, 19980), (999, 18440), (1080, 17057), (1110, 16596), (1332, 13830), (1383, 13320), (1480, 12447), (1665, 11064), (1844, 9990), (1998, 9220), (2220, 8298), (2305, 7992), (2664, 6915), (2766, 6660), (3330, 5532), (3688, 4995), (3996, 4610), (4149, 4440)]