31062780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1$

素因数の和:388

約数の個数: 144

約数和(自身を含む): 109287360

約数和(自身を除く): 78224580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 89, 90, 105, 126, 140, 178, 180, 210, 252, 267, 277, 315, 356, 420, 445, 534, 554, 623, 630, 801, 831, 890, 1068, 1108, 1246, 1260, 1335, 1385, 1602, 1662, 1780, 1869, 1939, 2492, 2493, 2670, 2770, 3115, 3204, 3324, 3738, 3878, 4005, 4155, 4986, 5340, 5540, 5607, 5817, 6230, 7476, 7756, 8010, 8310, 9345, 9695, 9972, 11214, 11634, 12460, 12465, 16020, 16620, 17451, 18690, 19390, 22428, 23268, 24653, 24930, 28035, 29085, 34902, 37380, 38780, 49306, 49860, 56070, 58170, 69804, 73959, 87255, 98612, 112140, 116340, 123265, 147918, 172571, 174510, 221877, 246530, 295836, 345142, 349020, 369795, 443754, 493060, 517713, 690284, 739590, 862855, 887508, 1035426, 1109385, 1479180, 1553139, 1725710, 2070852, 2218770, 2588565, 3106278, 3451420, 4437540, 5177130, 6212556, 7765695, 10354260, 15531390, 31062780]

約数ペア:

[(1, 31062780), (2, 15531390), (3, 10354260), (4, 7765695), (5, 6212556), (6, 5177130), (7, 4437540), (9, 3451420), (10, 3106278), (12, 2588565), (14, 2218770), (15, 2070852), (18, 1725710), (20, 1553139), (21, 1479180), (28, 1109385), (30, 1035426), (35, 887508), (36, 862855), (42, 739590), (45, 690284), (60, 517713), (63, 493060), (70, 443754), (84, 369795), (89, 349020), (90, 345142), (105, 295836), (126, 246530), (140, 221877), (178, 174510), (180, 172571), (210, 147918), (252, 123265), (267, 116340), (277, 112140), (315, 98612), (356, 87255), (420, 73959), (445, 69804), (534, 58170), (554, 56070), (623, 49860), (630, 49306), (801, 38780), (831, 37380), (890, 34902), (1068, 29085), (1108, 28035), (1246, 24930), (1260, 24653), (1335, 23268), (1385, 22428), (1602, 19390), (1662, 18690), (1780, 17451), (1869, 16620), (1939, 16020), (2492, 12465), (2493, 12460), (2670, 11634), (2770, 11214), (3115, 9972), (3204, 9695), (3324, 9345), (3738, 8310), (3878, 8010), (4005, 7756), (4155, 7476), (4986, 6230), (5340, 5817), (5540, 5607)]