397156960

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{34961}}^1$

素因数の和:35047

約数の個数: 48

約数和(自身を含む): 951525792

約数和(自身を除く): 554368832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 5680, 11360, 34961, 69922, 139844, 174805, 279688, 349610, 559376, 699220, 1118752, 1398440, 2482231, 2796880, 4964462, 5593760, 9928924, 12411155, 19857848, 24822310, 39715696, 49644620, 79431392, 99289240, 198578480, 397156960]

約数ペア:

[(1, 397156960), (2, 198578480), (4, 99289240), (5, 79431392), (8, 49644620), (10, 39715696), (16, 24822310), (20, 19857848), (32, 12411155), (40, 9928924), (71, 5593760), (80, 4964462), (142, 2796880), (160, 2482231), (284, 1398440), (355, 1118752), (568, 699220), (710, 559376), (1136, 349610), (1420, 279688), (2272, 174805), (2840, 139844), (5680, 69922), (11360, 34961)]