201207920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{751}}^1$

素因数の和:978

約数の個数: 80

約数和(自身を含む): 498503808

約数和(自身を除く): 297295888

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 197, 272, 340, 394, 680, 751, 788, 985, 1360, 1502, 1576, 1970, 3004, 3152, 3349, 3755, 3940, 6008, 6698, 7510, 7880, 12016, 12767, 13396, 15020, 15760, 16745, 25534, 26792, 30040, 33490, 51068, 53584, 60080, 63835, 66980, 102136, 127670, 133960, 147947, 204272, 255340, 267920, 295894, 510680, 591788, 739735, 1021360, 1183576, 1479470, 2367152, 2515099, 2958940, 5030198, 5917880, 10060396, 11835760, 12575495, 20120792, 25150990, 40241584, 50301980, 100603960, 201207920]

約数ペア:

[(1, 201207920), (2, 100603960), (4, 50301980), (5, 40241584), (8, 25150990), (10, 20120792), (16, 12575495), (17, 11835760), (20, 10060396), (34, 5917880), (40, 5030198), (68, 2958940), (80, 2515099), (85, 2367152), (136, 1479470), (170, 1183576), (197, 1021360), (272, 739735), (340, 591788), (394, 510680), (680, 295894), (751, 267920), (788, 255340), (985, 204272), (1360, 147947), (1502, 133960), (1576, 127670), (1970, 102136), (3004, 66980), (3152, 63835), (3349, 60080), (3755, 53584), (3940, 51068), (6008, 33490), (6698, 30040), (7510, 26792), (7880, 25534), (12016, 16745), (12767, 15760), (13396, 15020)]