20138040

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{331}}^1$

素因数の和:374

約数の個数: 144

約数和(自身を含む): 71084520

約数和(自身を除く): 50946480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 169, 180, 195, 234, 260, 312, 331, 338, 360, 390, 468, 507, 520, 585, 662, 676, 780, 845, 936, 993, 1014, 1170, 1324, 1352, 1521, 1560, 1655, 1690, 1986, 2028, 2340, 2535, 2648, 2979, 3042, 3310, 3380, 3972, 4056, 4303, 4680, 4965, 5070, 5958, 6084, 6620, 6760, 7605, 7944, 8606, 9930, 10140, 11916, 12168, 12909, 13240, 14895, 15210, 17212, 19860, 20280, 21515, 23832, 25818, 29790, 30420, 34424, 38727, 39720, 43030, 51636, 55939, 59580, 60840, 64545, 77454, 86060, 103272, 111878, 119160, 129090, 154908, 167817, 172120, 193635, 223756, 258180, 279695, 309816, 335634, 387270, 447512, 503451, 516360, 559390, 671268, 774540, 839085, 1006902, 1118780, 1342536, 1549080, 1678170, 2013804, 2237560, 2517255, 3356340, 4027608, 5034510, 6712680, 10069020, 20138040]

約数ペア:

[(1, 20138040), (2, 10069020), (3, 6712680), (4, 5034510), (5, 4027608), (6, 3356340), (8, 2517255), (9, 2237560), (10, 2013804), (12, 1678170), (13, 1549080), (15, 1342536), (18, 1118780), (20, 1006902), (24, 839085), (26, 774540), (30, 671268), (36, 559390), (39, 516360), (40, 503451), (45, 447512), (52, 387270), (60, 335634), (65, 309816), (72, 279695), (78, 258180), (90, 223756), (104, 193635), (117, 172120), (120, 167817), (130, 154908), (156, 129090), (169, 119160), (180, 111878), (195, 103272), (234, 86060), (260, 77454), (312, 64545), (331, 60840), (338, 59580), (360, 55939), (390, 51636), (468, 43030), (507, 39720), (520, 38727), (585, 34424), (662, 30420), (676, 29790), (780, 25818), (845, 23832), (936, 21515), (993, 20280), (1014, 19860), (1170, 17212), (1324, 15210), (1352, 14895), (1521, 13240), (1560, 12909), (1655, 12168), (1690, 11916), (1986, 10140), (2028, 9930), (2340, 8606), (2535, 7944), (2648, 7605), (2979, 6760), (3042, 6620), (3310, 6084), (3380, 5958), (3972, 5070), (4056, 4965), (4303, 4680)]