20742720

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:109

約数の個数: 224

約数和(自身を含む): 73737216

約数和(自身を除く): 52994496

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 31, 32, 34, 40, 41, 48, 51, 60, 62, 64, 68, 80, 82, 85, 93, 96, 102, 120, 123, 124, 136, 155, 160, 164, 170, 186, 192, 204, 205, 240, 246, 248, 255, 272, 310, 320, 328, 340, 372, 408, 410, 465, 480, 492, 496, 510, 527, 544, 615, 620, 656, 680, 697, 744, 816, 820, 930, 960, 984, 992, 1020, 1054, 1088, 1230, 1240, 1271, 1312, 1360, 1394, 1488, 1581, 1632, 1640, 1860, 1968, 1984, 2040, 2091, 2108, 2460, 2480, 2542, 2624, 2635, 2720, 2788, 2976, 3162, 3264, 3280, 3485, 3720, 3813, 3936, 4080, 4182, 4216, 4920, 4960, 5084, 5270, 5440, 5576, 5952, 6324, 6355, 6560, 6970, 7440, 7626, 7872, 7905, 8160, 8364, 8432, 9840, 9920, 10168, 10455, 10540, 11152, 12648, 12710, 13120, 13940, 14880, 15252, 15810, 16320, 16728, 16864, 19065, 19680, 20336, 20910, 21080, 21607, 22304, 25296, 25420, 27880, 29760, 30504, 31620, 33456, 33728, 38130, 39360, 40672, 41820, 42160, 43214, 44608, 50592, 50840, 55760, 61008, 63240, 64821, 66912, 76260, 81344, 83640, 84320, 86428, 101184, 101680, 108035, 111520, 122016, 126480, 129642, 133824, 152520, 167280, 168640, 172856, 203360, 216070, 223040, 244032, 252960, 259284, 305040, 324105, 334560, 345712, 406720, 432140, 505920, 518568, 610080, 648210, 669120, 691424, 864280, 1037136, 1220160, 1296420, 1382848, 1728560, 2074272, 2592840, 3457120, 4148544, 5185680, 6914240, 10371360, 20742720]

約数ペア:

[(1, 20742720), (2, 10371360), (3, 6914240), (4, 5185680), (5, 4148544), (6, 3457120), (8, 2592840), (10, 2074272), (12, 1728560), (15, 1382848), (16, 1296420), (17, 1220160), (20, 1037136), (24, 864280), (30, 691424), (31, 669120), (32, 648210), (34, 610080), (40, 518568), (41, 505920), (48, 432140), (51, 406720), (60, 345712), (62, 334560), (64, 324105), (68, 305040), (80, 259284), (82, 252960), (85, 244032), (93, 223040), (96, 216070), (102, 203360), (120, 172856), (123, 168640), (124, 167280), (136, 152520), (155, 133824), (160, 129642), (164, 126480), (170, 122016), (186, 111520), (192, 108035), (204, 101680), (205, 101184), (240, 86428), (246, 84320), (248, 83640), (255, 81344), (272, 76260), (310, 66912), (320, 64821), (328, 63240), (340, 61008), (372, 55760), (408, 50840), (410, 50592), (465, 44608), (480, 43214), (492, 42160), (496, 41820), (510, 40672), (527, 39360), (544, 38130), (615, 33728), (620, 33456), (656, 31620), (680, 30504), (697, 29760), (744, 27880), (816, 25420), (820, 25296), (930, 22304), (960, 21607), (984, 21080), (992, 20910), (1020, 20336), (1054, 19680), (1088, 19065), (1230, 16864), (1240, 16728), (1271, 16320), (1312, 15810), (1360, 15252), (1394, 14880), (1488, 13940), (1581, 13120), (1632, 12710), (1640, 12648), (1860, 11152), (1968, 10540), (1984, 10455), (2040, 10168), (2091, 9920), (2108, 9840), (2460, 8432), (2480, 8364), (2542, 8160), (2624, 7905), (2635, 7872), (2720, 7626), (2788, 7440), (2976, 6970), (3162, 6560), (3264, 6355), (3280, 6324), (3485, 5952), (3720, 5576), (3813, 5440), (3936, 5270), (4080, 5084), (4182, 4960), (4216, 4920)]