20734630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2131}}^1$

素因数の和:2284

約数の個数: 32

約数和(自身を含む): 42981120

約数和(自身を除く): 22246490

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 139, 278, 695, 973, 1390, 1946, 2131, 4262, 4865, 9730, 10655, 14917, 21310, 29834, 74585, 149170, 296209, 592418, 1481045, 2073463, 2962090, 4146926, 10367315, 20734630]

約数ペア:

[(1, 20734630), (2, 10367315), (5, 4146926), (7, 2962090), (10, 2073463), (14, 1481045), (35, 592418), (70, 296209), (139, 149170), (278, 74585), (695, 29834), (973, 21310), (1390, 14917), (1946, 10655), (2131, 9730), (4262, 4865)]