25414760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{653}}^1$

素因数の和:810

約数の個数: 64

約数和(自身を含む): 65923200

約数和(自身を除く): 40508440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 653, 695, 973, 1112, 1306, 1390, 1946, 2612, 2780, 3265, 3892, 4571, 4865, 5224, 5560, 6530, 7784, 9142, 9730, 13060, 18284, 19460, 22855, 26120, 36568, 38920, 45710, 90767, 91420, 181534, 182840, 363068, 453835, 635369, 726136, 907670, 1270738, 1815340, 2541476, 3176845, 3630680, 5082952, 6353690, 12707380, 25414760]

約数ペア:

[(1, 25414760), (2, 12707380), (4, 6353690), (5, 5082952), (7, 3630680), (8, 3176845), (10, 2541476), (14, 1815340), (20, 1270738), (28, 907670), (35, 726136), (40, 635369), (56, 453835), (70, 363068), (139, 182840), (140, 181534), (278, 91420), (280, 90767), (556, 45710), (653, 38920), (695, 36568), (973, 26120), (1112, 22855), (1306, 19460), (1390, 18284), (1946, 13060), (2612, 9730), (2780, 9142), (3265, 7784), (3892, 6530), (4571, 5560), (4865, 5224)]