619021520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31327}}^1$

素因数の和:31372

約数の個数: 80

約数和(自身を含む): 1631562240

約数和(自身を除く): 1012540720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1976, 2470, 3952, 4940, 9880, 19760, 31327, 62654, 125308, 156635, 250616, 313270, 407251, 501232, 595213, 626540, 814502, 1190426, 1253080, 1629004, 2036255, 2380852, 2506160, 2976065, 3258008, 4072510, 4761704, 5952130, 6516016, 7737769, 8145020, 9523408, 11904260, 15475538, 16290040, 23808520, 30951076, 32580080, 38688845, 47617040, 61902152, 77377690, 123804304, 154755380, 309510760, 619021520]

約数ペア:

[(1, 619021520), (2, 309510760), (4, 154755380), (5, 123804304), (8, 77377690), (10, 61902152), (13, 47617040), (16, 38688845), (19, 32580080), (20, 30951076), (26, 23808520), (38, 16290040), (40, 15475538), (52, 11904260), (65, 9523408), (76, 8145020), (80, 7737769), (95, 6516016), (104, 5952130), (130, 4761704), (152, 4072510), (190, 3258008), (208, 2976065), (247, 2506160), (260, 2380852), (304, 2036255), (380, 1629004), (494, 1253080), (520, 1190426), (760, 814502), (988, 626540), (1040, 595213), (1235, 501232), (1520, 407251), (1976, 313270), (2470, 250616), (3952, 156635), (4940, 125308), (9880, 62654), (19760, 31327)]