90561920

素因数分解:

$2^7\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1993}}^1$

素因数の和:2083

約数の個数: 64

約数和(自身を含む): 219659040

約数和(自身を除く): 129097120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 284, 320, 355, 568, 640, 710, 1136, 1420, 1993, 2272, 2840, 3986, 4544, 5680, 7972, 9088, 9965, 11360, 15944, 19930, 22720, 31888, 39860, 45440, 63776, 79720, 127552, 141503, 159440, 255104, 283006, 318880, 566012, 637760, 707515, 1132024, 1275520, 1415030, 2264048, 2830060, 4528096, 5660120, 9056192, 11320240, 18112384, 22640480, 45280960, 90561920]

約数ペア:

[(1, 90561920), (2, 45280960), (4, 22640480), (5, 18112384), (8, 11320240), (10, 9056192), (16, 5660120), (20, 4528096), (32, 2830060), (40, 2264048), (64, 1415030), (71, 1275520), (80, 1132024), (128, 707515), (142, 637760), (160, 566012), (284, 318880), (320, 283006), (355, 255104), (568, 159440), (640, 141503), (710, 127552), (1136, 79720), (1420, 63776), (1993, 45440), (2272, 39860), (2840, 31888), (3986, 22720), (4544, 19930), (5680, 15944), (7972, 11360), (9088, 9965)]