219225460

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{179693}}^1$

素因数の和:179763

約数の個数: 24

約数和(自身を含む): 467923176

約数和(自身を除く): 248697716

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 179693, 359386, 718772, 898465, 1796930, 3593860, 10961273, 21922546, 43845092, 54806365, 109612730, 219225460]

約数ペア:

[(1, 219225460), (2, 109612730), (4, 54806365), (5, 43845092), (10, 21922546), (20, 10961273), (61, 3593860), (122, 1796930), (244, 898465), (305, 718772), (610, 359386), (1220, 179693)]