163641452

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1861}}^1$

素因数の和:1986

約数の個数: 48

約数和(自身を含む): 328456800

約数和(自身を除く): 164815348

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 89, 178, 247, 356, 494, 988, 1157, 1691, 1861, 2314, 3382, 3722, 4628, 6764, 7444, 21983, 24193, 35359, 43966, 48386, 70718, 87932, 96772, 141436, 165629, 331258, 459667, 662516, 919334, 1838668, 2153177, 3146951, 4306354, 6293902, 8612708, 12587804, 40910363, 81820726, 163641452]

約数ペア:

[(1, 163641452), (2, 81820726), (4, 40910363), (13, 12587804), (19, 8612708), (26, 6293902), (38, 4306354), (52, 3146951), (76, 2153177), (89, 1838668), (178, 919334), (247, 662516), (356, 459667), (494, 331258), (988, 165629), (1157, 141436), (1691, 96772), (1861, 87932), (2314, 70718), (3382, 48386), (3722, 43966), (4628, 35359), (6764, 24193), (7444, 21983)]