20122085860

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{232303}}^1$

素因数の和:232444

約数の個数: 48

約数和(自身を含む): 43554212352

約数和(自身を除く): 23432126492

約数列:

[1, 2, 4, 5, 10, 20, 61, 71, 122, 142, 244, 284, 305, 355, 610, 710, 1220, 1420, 4331, 8662, 17324, 21655, 43310, 86620, 232303, 464606, 929212, 1161515, 2323030, 4646060, 14170483, 16493513, 28340966, 32987026, 56681932, 65974052, 70852415, 82467565, 141704830, 164935130, 283409660, 329870260, 1006104293, 2012208586, 4024417172, 5030521465, 10061042930, 20122085860]

約数ペア:

[(1, 20122085860), (2, 10061042930), (4, 5030521465), (5, 4024417172), (10, 2012208586), (20, 1006104293), (61, 329870260), (71, 283409660), (122, 164935130), (142, 141704830), (244, 82467565), (284, 70852415), (305, 65974052), (355, 56681932), (610, 32987026), (710, 28340966), (1220, 16493513), (1420, 14170483), (4331, 4646060), (8662, 2323030), (17324, 1161515), (21655, 929212), (43310, 464606), (86620, 232303)]