1720988490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{43691}}^1$

素因数の和:43815

約数の個数: 64

約数和(自身を含む): 4492236672

約数和(自身を除く): 2771248182

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 101, 130, 195, 202, 303, 390, 505, 606, 1010, 1313, 1515, 2626, 3030, 3939, 6565, 7878, 13130, 19695, 39390, 43691, 87382, 131073, 218455, 262146, 436910, 567983, 655365, 1135966, 1310730, 1703949, 2839915, 3407898, 4412791, 5679830, 8519745, 8825582, 13238373, 17039490, 22063955, 26476746, 44127910, 57366283, 66191865, 114732566, 132383730, 172098849, 286831415, 344197698, 573662830, 860494245, 1720988490]

約数ペア:

[(1, 1720988490), (2, 860494245), (3, 573662830), (5, 344197698), (6, 286831415), (10, 172098849), (13, 132383730), (15, 114732566), (26, 66191865), (30, 57366283), (39, 44127910), (65, 26476746), (78, 22063955), (101, 17039490), (130, 13238373), (195, 8825582), (202, 8519745), (303, 5679830), (390, 4412791), (505, 3407898), (606, 2839915), (1010, 1703949), (1313, 1310730), (1515, 1135966), (2626, 655365), (3030, 567983), (3939, 436910), (6565, 262146), (7878, 218455), (13130, 131073), (19695, 87382), (39390, 43691)]