81482885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{163}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 109814400

約数和(自身を除く): 28331515

約数列:

[1, 5, 11, 55, 61, 149, 163, 305, 671, 745, 815, 1639, 1793, 3355, 8195, 8965, 9089, 9943, 24287, 45445, 49715, 99979, 109373, 121435, 267157, 499895, 546865, 1335785, 1481507, 7407535, 16296577, 81482885]

約数ペア:

[(1, 81482885), (5, 16296577), (11, 7407535), (55, 1481507), (61, 1335785), (149, 546865), (163, 499895), (305, 267157), (671, 121435), (745, 109373), (815, 99979), (1639, 49715), (1793, 45445), (3355, 24287), (8195, 9943), (8965, 9089)]