90274940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{4639}}^1$

素因数の和:4794

約数の個数: 48

約数和(自身を含む): 218265600

約数和(自身を除く): 127990660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4639, 4865, 9278, 9730, 18556, 19460, 23195, 32473, 46390, 64946, 92780, 129892, 162365, 324730, 644821, 649460, 1289642, 2579284, 3224105, 4513747, 6448210, 9027494, 12896420, 18054988, 22568735, 45137470, 90274940]

約数ペア:

[(1, 90274940), (2, 45137470), (4, 22568735), (5, 18054988), (7, 12896420), (10, 9027494), (14, 6448210), (20, 4513747), (28, 3224105), (35, 2579284), (70, 1289642), (139, 649460), (140, 644821), (278, 324730), (556, 162365), (695, 129892), (973, 92780), (1390, 64946), (1946, 46390), (2780, 32473), (3892, 23195), (4639, 19460), (4865, 18556), (9278, 9730)]