25673680

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5261}}^1$

素因数の和:5335

約数の個数: 40

約数和(自身を含む): 60681384

約数和(自身を除く): 35007704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 5261, 10522, 21044, 26305, 42088, 52610, 84176, 105220, 210440, 320921, 420880, 641842, 1283684, 1604605, 2567368, 3209210, 5134736, 6418420, 12836840, 25673680]

約数ペア:

[(1, 25673680), (2, 12836840), (4, 6418420), (5, 5134736), (8, 3209210), (10, 2567368), (16, 1604605), (20, 1283684), (40, 641842), (61, 420880), (80, 320921), (122, 210440), (244, 105220), (305, 84176), (488, 52610), (610, 42088), (976, 26305), (1220, 21044), (2440, 10522), (4880, 5261)]