25640420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5801}}^1$

素因数の和:5840

約数の個数: 48

約数和(自身を含む): 61408368

約数和(自身を除く): 35767948

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 5801, 11602, 23204, 29005, 58010, 75413, 98617, 116020, 150826, 197234, 301652, 377065, 394468, 493085, 754130, 986170, 1282021, 1508260, 1972340, 2564042, 5128084, 6410105, 12820210, 25640420]

約数ペア:

[(1, 25640420), (2, 12820210), (4, 6410105), (5, 5128084), (10, 2564042), (13, 1972340), (17, 1508260), (20, 1282021), (26, 986170), (34, 754130), (52, 493085), (65, 394468), (68, 377065), (85, 301652), (130, 197234), (170, 150826), (221, 116020), (260, 98617), (340, 75413), (442, 58010), (884, 29005), (1105, 23204), (2210, 11602), (4420, 5801)]