221728390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{11447}}^1$

素因数の和:11616

約数の個数: 32

約数和(自身を含む): 432734400

約数和(自身を除く): 211006010

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 1490, 1937, 3874, 9685, 11447, 19370, 22894, 57235, 114470, 148811, 297622, 744055, 1488110, 1705603, 3411206, 8528015, 17056030, 22172839, 44345678, 110864195, 221728390]

約数ペア:

[(1, 221728390), (2, 110864195), (5, 44345678), (10, 22172839), (13, 17056030), (26, 8528015), (65, 3411206), (130, 1705603), (149, 1488110), (298, 744055), (745, 297622), (1490, 148811), (1937, 114470), (3874, 57235), (9685, 22894), (11447, 19370)]