676491920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20983}}^1$

素因数の和:21040

約数の個数: 80

約数和(自身を含む): 1748554752

約数和(自身を除く): 1072062832

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 16120, 20983, 32240, 41966, 83932, 104915, 167864, 209830, 272779, 335728, 419660, 545558, 650473, 839320, 1091116, 1300946, 1363895, 1678640, 2182232, 2601892, 2727790, 3252365, 4364464, 5203784, 5455580, 6504730, 8456149, 10407568, 10911160, 13009460, 16912298, 21822320, 26018920, 33824596, 42280745, 52037840, 67649192, 84561490, 135298384, 169122980, 338245960, 676491920]

約数ペア:

[(1, 676491920), (2, 338245960), (4, 169122980), (5, 135298384), (8, 84561490), (10, 67649192), (13, 52037840), (16, 42280745), (20, 33824596), (26, 26018920), (31, 21822320), (40, 16912298), (52, 13009460), (62, 10911160), (65, 10407568), (80, 8456149), (104, 6504730), (124, 5455580), (130, 5203784), (155, 4364464), (208, 3252365), (248, 2727790), (260, 2601892), (310, 2182232), (403, 1678640), (496, 1363895), (520, 1300946), (620, 1091116), (806, 839320), (1040, 650473), (1240, 545558), (1612, 419660), (2015, 335728), (2480, 272779), (3224, 209830), (4030, 167864), (6448, 104915), (8060, 83932), (16120, 41966), (20983, 32240)]