318532175

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{991}}^1$

素因数の和:1080

約数の個数: 48

約数和(自身を含む): 454637568

約数和(自身を除く): 136105393

約数列:

[1, 5, 13, 23, 25, 43, 65, 115, 215, 299, 325, 559, 575, 989, 991, 1075, 1495, 2795, 4945, 4955, 7475, 12857, 12883, 13975, 22793, 24725, 24775, 42613, 64285, 64415, 113965, 213065, 296309, 321425, 322075, 553969, 569825, 980099, 1065325, 1481545, 2769845, 4900495, 7407725, 12741287, 13849225, 24502475, 63706435, 318532175]

約数ペア:

[(1, 318532175), (5, 63706435), (13, 24502475), (23, 13849225), (25, 12741287), (43, 7407725), (65, 4900495), (115, 2769845), (215, 1481545), (299, 1065325), (325, 980099), (559, 569825), (575, 553969), (989, 322075), (991, 321425), (1075, 296309), (1495, 213065), (2795, 113965), (4945, 64415), (4955, 64285), (7475, 42613), (12857, 24775), (12883, 24725), (13975, 22793)]