20002840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{269}}^1$

素因数の和:317

約数の個数: 96

約数和(自身を含む): 53362800

約数和(自身を除く): 33359960

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 169, 220, 260, 269, 286, 338, 440, 520, 538, 572, 676, 715, 845, 1076, 1144, 1345, 1352, 1430, 1690, 1859, 2152, 2690, 2860, 2959, 3380, 3497, 3718, 5380, 5720, 5918, 6760, 6994, 7436, 9295, 10760, 11836, 13988, 14795, 14872, 17485, 18590, 23672, 27976, 29590, 34970, 37180, 38467, 45461, 59180, 69940, 74360, 76934, 90922, 118360, 139880, 153868, 181844, 192335, 227305, 307736, 363688, 384670, 454610, 500071, 769340, 909220, 1000142, 1538680, 1818440, 2000284, 2500355, 4000568, 5000710, 10001420, 20002840]

約数ペア:

[(1, 20002840), (2, 10001420), (4, 5000710), (5, 4000568), (8, 2500355), (10, 2000284), (11, 1818440), (13, 1538680), (20, 1000142), (22, 909220), (26, 769340), (40, 500071), (44, 454610), (52, 384670), (55, 363688), (65, 307736), (88, 227305), (104, 192335), (110, 181844), (130, 153868), (143, 139880), (169, 118360), (220, 90922), (260, 76934), (269, 74360), (286, 69940), (338, 59180), (440, 45461), (520, 38467), (538, 37180), (572, 34970), (676, 29590), (715, 27976), (845, 23672), (1076, 18590), (1144, 17485), (1345, 14872), (1352, 14795), (1430, 13988), (1690, 11836), (1859, 10760), (2152, 9295), (2690, 7436), (2860, 6994), (2959, 6760), (3380, 5918), (3497, 5720), (3718, 5380)]