861594372

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{521}}^1\times {\mathrm{647}}^1$

素因数の和:1249

約数の個数: 72

約数和(自身を含む): 2216253312

約数和(自身を除く): 1354658940

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 521, 639, 647, 852, 1042, 1278, 1294, 1563, 1941, 2084, 2556, 2588, 3126, 3882, 4689, 5823, 6252, 7764, 9378, 11646, 18756, 23292, 36991, 45937, 73982, 91874, 110973, 137811, 147964, 183748, 221946, 275622, 332919, 337087, 413433, 443892, 551244, 665838, 674174, 826866, 1011261, 1331676, 1348348, 1653732, 2022522, 3033783, 4045044, 6067566, 12135132, 23933177, 47866354, 71799531, 95732708, 143599062, 215398593, 287198124, 430797186, 861594372]

約数ペア:

[(1, 861594372), (2, 430797186), (3, 287198124), (4, 215398593), (6, 143599062), (9, 95732708), (12, 71799531), (18, 47866354), (36, 23933177), (71, 12135132), (142, 6067566), (213, 4045044), (284, 3033783), (426, 2022522), (521, 1653732), (639, 1348348), (647, 1331676), (852, 1011261), (1042, 826866), (1278, 674174), (1294, 665838), (1563, 551244), (1941, 443892), (2084, 413433), (2556, 337087), (2588, 332919), (3126, 275622), (3882, 221946), (4689, 183748), (5823, 147964), (6252, 137811), (7764, 110973), (9378, 91874), (11646, 73982), (18756, 45937), (23292, 36991)]