8781560

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^2$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 20428200

約数和(自身を除く): 11646640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 61, 118, 122, 236, 244, 295, 305, 472, 488, 590, 610, 1180, 1220, 2360, 2440, 3599, 3721, 7198, 7442, 14396, 14884, 17995, 18605, 28792, 29768, 35990, 37210, 71980, 74420, 143960, 148840, 219539, 439078, 878156, 1097695, 1756312, 2195390, 4390780, 8781560]

約数ペア:

[(1, 8781560), (2, 4390780), (4, 2195390), (5, 1756312), (8, 1097695), (10, 878156), (20, 439078), (40, 219539), (59, 148840), (61, 143960), (118, 74420), (122, 71980), (236, 37210), (244, 35990), (295, 29768), (305, 28792), (472, 18605), (488, 17995), (590, 14884), (610, 14396), (1180, 7442), (1220, 7198), (2360, 3721), (2440, 3599)]