245137520

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{12821}}^1$

素因数の和:13073

約数の個数: 40

約数和(自身を含む): 572374080

約数和(自身を除く): 327236560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 478, 956, 1195, 1912, 2390, 3824, 4780, 9560, 12821, 19120, 25642, 51284, 64105, 102568, 128210, 205136, 256420, 512840, 1025680, 3064219, 6128438, 12256876, 15321095, 24513752, 30642190, 49027504, 61284380, 122568760, 245137520]

約数ペア:

[(1, 245137520), (2, 122568760), (4, 61284380), (5, 49027504), (8, 30642190), (10, 24513752), (16, 15321095), (20, 12256876), (40, 6128438), (80, 3064219), (239, 1025680), (478, 512840), (956, 256420), (1195, 205136), (1912, 128210), (2390, 102568), (3824, 64105), (4780, 51284), (9560, 25642), (12821, 19120)]