199147960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{1031}}^1$

素因数の和:1492

約数の個数: 64

約数和(自身を含む): 490406400

約数和(自身を除く): 291258440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 439, 440, 878, 1031, 1756, 2062, 2195, 3512, 4124, 4390, 4829, 5155, 8248, 8780, 9658, 10310, 11341, 17560, 19316, 20620, 22682, 24145, 38632, 41240, 45364, 48290, 56705, 90728, 96580, 113410, 193160, 226820, 452609, 453640, 905218, 1810436, 2263045, 3620872, 4526090, 4978699, 9052180, 9957398, 18104360, 19914796, 24893495, 39829592, 49786990, 99573980, 199147960]

約数ペア:

[(1, 199147960), (2, 99573980), (4, 49786990), (5, 39829592), (8, 24893495), (10, 19914796), (11, 18104360), (20, 9957398), (22, 9052180), (40, 4978699), (44, 4526090), (55, 3620872), (88, 2263045), (110, 1810436), (220, 905218), (439, 453640), (440, 452609), (878, 226820), (1031, 193160), (1756, 113410), (2062, 96580), (2195, 90728), (3512, 56705), (4124, 48290), (4390, 45364), (4829, 41240), (5155, 38632), (8248, 24145), (8780, 22682), (9658, 20620), (10310, 19316), (11341, 17560)]