201554990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{221489}}^1$

素因数の和:221516

約数の個数: 32

約数和(自身を含む): 446523840

約数和(自身を除く): 244968850

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 221489, 442978, 1107445, 1550423, 2214890, 2879357, 3100846, 5758714, 7752115, 14396785, 15504230, 20155499, 28793570, 40310998, 100777495, 201554990]

約数ペア:

[(1, 201554990), (2, 100777495), (5, 40310998), (7, 28793570), (10, 20155499), (13, 15504230), (14, 14396785), (26, 7752115), (35, 5758714), (65, 3100846), (70, 2879357), (91, 2214890), (130, 1550423), (182, 1107445), (455, 442978), (910, 221489)]