265127960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1\times {\mathrm{563}}^1$

素因数の和:828

約数の個数: 64

約数和(自身を含む): 610541280

約数和(自身を除く): 345413320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 193, 244, 305, 386, 488, 563, 610, 772, 965, 1126, 1220, 1544, 1930, 2252, 2440, 2815, 3860, 4504, 5630, 7720, 11260, 11773, 22520, 23546, 34343, 47092, 58865, 68686, 94184, 108659, 117730, 137372, 171715, 217318, 235460, 274744, 343430, 434636, 470920, 543295, 686860, 869272, 1086590, 1373720, 2173180, 4346360, 6628199, 13256398, 26512796, 33140995, 53025592, 66281990, 132563980, 265127960]

約数ペア:

[(1, 265127960), (2, 132563980), (4, 66281990), (5, 53025592), (8, 33140995), (10, 26512796), (20, 13256398), (40, 6628199), (61, 4346360), (122, 2173180), (193, 1373720), (244, 1086590), (305, 869272), (386, 686860), (488, 543295), (563, 470920), (610, 434636), (772, 343430), (965, 274744), (1126, 235460), (1220, 217318), (1544, 171715), (1930, 137372), (2252, 117730), (2440, 108659), (2815, 94184), (3860, 68686), (4504, 58865), (5630, 47092), (7720, 34343), (11260, 23546), (11773, 22520)]