402029680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{677}}^1$

素因数の和:1274

約数の個数: 80

約数和(自身を含む): 1009872864

約数和(自身を除く): 607843184

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 571, 677, 1040, 1142, 1354, 2284, 2708, 2855, 3385, 4568, 5416, 5710, 6770, 7423, 8801, 9136, 10832, 11420, 13540, 14846, 17602, 22840, 27080, 29692, 35204, 37115, 44005, 45680, 54160, 59384, 70408, 74230, 88010, 118768, 140816, 148460, 176020, 296920, 352040, 386567, 593840, 704080, 773134, 1546268, 1932835, 3092536, 3865670, 5025371, 6185072, 7731340, 10050742, 15462680, 20101484, 25126855, 30925360, 40202968, 50253710, 80405936, 100507420, 201014840, 402029680]

約数ペア:

[(1, 402029680), (2, 201014840), (4, 100507420), (5, 80405936), (8, 50253710), (10, 40202968), (13, 30925360), (16, 25126855), (20, 20101484), (26, 15462680), (40, 10050742), (52, 7731340), (65, 6185072), (80, 5025371), (104, 3865670), (130, 3092536), (208, 1932835), (260, 1546268), (520, 773134), (571, 704080), (677, 593840), (1040, 386567), (1142, 352040), (1354, 296920), (2284, 176020), (2708, 148460), (2855, 140816), (3385, 118768), (4568, 88010), (5416, 74230), (5710, 70408), (6770, 59384), (7423, 54160), (8801, 45680), (9136, 44005), (10832, 37115), (11420, 35204), (13540, 29692), (14846, 27080), (17602, 22840)]