1988349920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{23581}}^1$

素因数の和:23644

約数の個数: 96

約数和(自身を含む): 5134461696

約数和(自身を除く): 3146111776

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 68, 80, 85, 124, 136, 155, 160, 170, 248, 272, 310, 340, 496, 527, 544, 620, 680, 992, 1054, 1240, 1360, 2108, 2480, 2635, 2720, 4216, 4960, 5270, 8432, 10540, 16864, 21080, 23581, 42160, 47162, 84320, 94324, 117905, 188648, 235810, 377296, 400877, 471620, 731011, 754592, 801754, 943240, 1462022, 1603508, 1886480, 2004385, 2924044, 3207016, 3655055, 3772960, 4008770, 5848088, 6414032, 7310110, 8017540, 11696176, 12427187, 12828064, 14620220, 16035080, 23392352, 24854374, 29240440, 32070160, 49708748, 58480880, 62135935, 64140320, 99417496, 116961760, 124271870, 198834992, 248543740, 397669984, 497087480, 994174960, 1988349920]

約数ペア:

[(1, 1988349920), (2, 994174960), (4, 497087480), (5, 397669984), (8, 248543740), (10, 198834992), (16, 124271870), (17, 116961760), (20, 99417496), (31, 64140320), (32, 62135935), (34, 58480880), (40, 49708748), (62, 32070160), (68, 29240440), (80, 24854374), (85, 23392352), (124, 16035080), (136, 14620220), (155, 12828064), (160, 12427187), (170, 11696176), (248, 8017540), (272, 7310110), (310, 6414032), (340, 5848088), (496, 4008770), (527, 3772960), (544, 3655055), (620, 3207016), (680, 2924044), (992, 2004385), (1054, 1886480), (1240, 1603508), (1360, 1462022), (2108, 943240), (2480, 801754), (2635, 754592), (2720, 731011), (4216, 471620), (4960, 400877), (5270, 377296), (8432, 235810), (10540, 188648), (16864, 117905), (21080, 94324), (23581, 84320), (42160, 47162)]