315817420

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1\times {\mathrm{809}}^1$

素因数の和:1098

約数の個数: 48

約数和(自身を含む): 673596000

約数和(自身を除く): 357778580

約数列:

[1, 2, 4, 5, 10, 20, 131, 149, 262, 298, 524, 596, 655, 745, 809, 1310, 1490, 1618, 2620, 2980, 3236, 4045, 8090, 16180, 19519, 39038, 78076, 97595, 105979, 120541, 195190, 211958, 241082, 390380, 423916, 482164, 529895, 602705, 1059790, 1205410, 2119580, 2410820, 15790871, 31581742, 63163484, 78954355, 157908710, 315817420]

約数ペア:

[(1, 315817420), (2, 157908710), (4, 78954355), (5, 63163484), (10, 31581742), (20, 15790871), (131, 2410820), (149, 2119580), (262, 1205410), (298, 1059790), (524, 602705), (596, 529895), (655, 482164), (745, 423916), (809, 390380), (1310, 241082), (1490, 211958), (1618, 195190), (2620, 120541), (2980, 105979), (3236, 97595), (4045, 78076), (8090, 39038), (16180, 19519)]