291681855

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{397}}^1\times {\mathrm{563}}^1$

素因数の和:1000

約数の個数: 48

約数和(自身を含む): 525264480

約数和(自身を除く): 233582625

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 397, 435, 563, 1191, 1305, 1689, 1985, 2815, 3573, 5067, 5955, 8445, 11513, 16327, 17865, 25335, 34539, 48981, 57565, 81635, 103617, 146943, 172695, 223511, 244905, 518085, 670533, 734715, 1117555, 2011599, 3352665, 6481819, 10057995, 19445457, 32409095, 58336371, 97227285, 291681855]

約数ペア:

[(1, 291681855), (3, 97227285), (5, 58336371), (9, 32409095), (15, 19445457), (29, 10057995), (45, 6481819), (87, 3352665), (145, 2011599), (261, 1117555), (397, 734715), (435, 670533), (563, 518085), (1191, 244905), (1305, 223511), (1689, 172695), (1985, 146943), (2815, 103617), (3573, 81635), (5067, 57565), (5955, 48981), (8445, 34539), (11513, 25335), (16327, 17865)]