1220180

素因数分解:

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

素因数の和:73

約数の個数: 54

約数和(自身を含む): 2928366

約数和(自身を除く): 1708186

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 169, 190, 247, 260, 338, 361, 380, 494, 676, 722, 845, 988, 1235, 1444, 1690, 1805, 2470, 3211, 3380, 3610, 4693, 4940, 6422, 7220, 9386, 12844, 16055, 18772, 23465, 32110, 46930, 61009, 64220, 93860, 122018, 244036, 305045, 610090, 1220180]

約数ペア:

[(1, 1220180), (2, 610090), (4, 305045), (5, 244036), (10, 122018), (13, 93860), (19, 64220), (20, 61009), (26, 46930), (38, 32110), (52, 23465), (65, 18772), (76, 16055), (95, 12844), (130, 9386), (169, 7220), (190, 6422), (247, 4940), (260, 4693), (338, 3610), (361, 3380), (380, 3211), (494, 2470), (676, 1805), (722, 1690), (845, 1444), (988, 1235)]