251942580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{277}}^1$

素因数の和:486

約数の個数: 144

約数和(自身を含む): 796583424

約数和(自身を除く): 544640844

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 163, 180, 186, 277, 279, 310, 326, 372, 465, 489, 554, 558, 620, 652, 815, 831, 930, 978, 1108, 1116, 1385, 1395, 1467, 1630, 1662, 1860, 1956, 2445, 2493, 2770, 2790, 2934, 3260, 3324, 4155, 4890, 4986, 5053, 5540, 5580, 5868, 7335, 8310, 8587, 9780, 9972, 10106, 12465, 14670, 15159, 16620, 17174, 20212, 24930, 25265, 25761, 29340, 30318, 34348, 42935, 45151, 45477, 49860, 50530, 51522, 60636, 75795, 77283, 85870, 90302, 90954, 101060, 103044, 128805, 135453, 151590, 154566, 171740, 180604, 181908, 225755, 227385, 257610, 270906, 303180, 309132, 386415, 406359, 451510, 454770, 515220, 541812, 677265, 772830, 812718, 903020, 909540, 1354530, 1399681, 1545660, 1625436, 2031795, 2709060, 2799362, 4063590, 4199043, 5598724, 6998405, 8127180, 8398086, 12597129, 13996810, 16796172, 20995215, 25194258, 27993620, 41990430, 50388516, 62985645, 83980860, 125971290, 251942580]

約数ペア:

[(1, 251942580), (2, 125971290), (3, 83980860), (4, 62985645), (5, 50388516), (6, 41990430), (9, 27993620), (10, 25194258), (12, 20995215), (15, 16796172), (18, 13996810), (20, 12597129), (30, 8398086), (31, 8127180), (36, 6998405), (45, 5598724), (60, 4199043), (62, 4063590), (90, 2799362), (93, 2709060), (124, 2031795), (155, 1625436), (163, 1545660), (180, 1399681), (186, 1354530), (277, 909540), (279, 903020), (310, 812718), (326, 772830), (372, 677265), (465, 541812), (489, 515220), (554, 454770), (558, 451510), (620, 406359), (652, 386415), (815, 309132), (831, 303180), (930, 270906), (978, 257610), (1108, 227385), (1116, 225755), (1385, 181908), (1395, 180604), (1467, 171740), (1630, 154566), (1662, 151590), (1860, 135453), (1956, 128805), (2445, 103044), (2493, 101060), (2770, 90954), (2790, 90302), (2934, 85870), (3260, 77283), (3324, 75795), (4155, 60636), (4890, 51522), (4986, 50530), (5053, 49860), (5540, 45477), (5580, 45151), (5868, 42935), (7335, 34348), (8310, 30318), (8587, 29340), (9780, 25761), (9972, 25265), (10106, 24930), (12465, 20212), (14670, 17174), (15159, 16620)]