31138020

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:216

約数の個数: 144

約数和(自身を含む): 100900800

約数和(自身を除く): 69762780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 43, 45, 54, 60, 81, 86, 90, 108, 129, 135, 149, 162, 172, 180, 215, 243, 258, 270, 298, 324, 387, 405, 430, 447, 486, 516, 540, 596, 645, 745, 774, 810, 860, 894, 972, 1161, 1215, 1290, 1341, 1490, 1548, 1620, 1788, 1935, 2235, 2322, 2430, 2580, 2682, 2980, 3483, 3870, 4023, 4470, 4644, 4860, 5364, 5805, 6407, 6705, 6966, 7740, 8046, 8940, 10449, 11610, 12069, 12814, 13410, 13932, 16092, 17415, 19221, 20115, 20898, 23220, 24138, 25628, 26820, 32035, 34830, 36207, 38442, 40230, 41796, 48276, 52245, 57663, 60345, 64070, 69660, 72414, 76884, 80460, 96105, 104490, 115326, 120690, 128140, 144828, 172989, 181035, 192210, 208980, 230652, 241380, 288315, 345978, 362070, 384420, 518967, 576630, 691956, 724140, 864945, 1037934, 1153260, 1556901, 1729890, 2075868, 2594835, 3113802, 3459780, 5189670, 6227604, 7784505, 10379340, 15569010, 31138020]

約数ペア:

[(1, 31138020), (2, 15569010), (3, 10379340), (4, 7784505), (5, 6227604), (6, 5189670), (9, 3459780), (10, 3113802), (12, 2594835), (15, 2075868), (18, 1729890), (20, 1556901), (27, 1153260), (30, 1037934), (36, 864945), (43, 724140), (45, 691956), (54, 576630), (60, 518967), (81, 384420), (86, 362070), (90, 345978), (108, 288315), (129, 241380), (135, 230652), (149, 208980), (162, 192210), (172, 181035), (180, 172989), (215, 144828), (243, 128140), (258, 120690), (270, 115326), (298, 104490), (324, 96105), (387, 80460), (405, 76884), (430, 72414), (447, 69660), (486, 64070), (516, 60345), (540, 57663), (596, 52245), (645, 48276), (745, 41796), (774, 40230), (810, 38442), (860, 36207), (894, 34830), (972, 32035), (1161, 26820), (1215, 25628), (1290, 24138), (1341, 23220), (1490, 20898), (1548, 20115), (1620, 19221), (1788, 17415), (1935, 16092), (2235, 13932), (2322, 13410), (2430, 12814), (2580, 12069), (2682, 11610), (2980, 10449), (3483, 8940), (3870, 8046), (4023, 7740), (4470, 6966), (4644, 6705), (4860, 6407), (5364, 5805)]