4880720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^2$

素因数の和:77

約数の個数: 90

約数和(自身を含む): 12968478

約数和(自身を除く): 8087758

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 169, 190, 208, 247, 260, 304, 338, 361, 380, 494, 520, 676, 722, 760, 845, 988, 1040, 1235, 1352, 1444, 1520, 1690, 1805, 1976, 2470, 2704, 2888, 3211, 3380, 3610, 3952, 4693, 4940, 5776, 6422, 6760, 7220, 9386, 9880, 12844, 13520, 14440, 16055, 18772, 19760, 23465, 25688, 28880, 32110, 37544, 46930, 51376, 61009, 64220, 75088, 93860, 122018, 128440, 187720, 244036, 256880, 305045, 375440, 488072, 610090, 976144, 1220180, 2440360, 4880720]

約数ペア:

[(1, 4880720), (2, 2440360), (4, 1220180), (5, 976144), (8, 610090), (10, 488072), (13, 375440), (16, 305045), (19, 256880), (20, 244036), (26, 187720), (38, 128440), (40, 122018), (52, 93860), (65, 75088), (76, 64220), (80, 61009), (95, 51376), (104, 46930), (130, 37544), (152, 32110), (169, 28880), (190, 25688), (208, 23465), (247, 19760), (260, 18772), (304, 16055), (338, 14440), (361, 13520), (380, 12844), (494, 9880), (520, 9386), (676, 7220), (722, 6760), (760, 6422), (845, 5776), (988, 4940), (1040, 4693), (1235, 3952), (1352, 3610), (1444, 3380), (1520, 3211), (1690, 2888), (1805, 2704), (1976, 2470)]