31217640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:219

約数の個数: 128

約数和(自身を含む): 98496000

約数和(自身を除く): 67278360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 74, 79, 89, 111, 120, 148, 158, 178, 185, 222, 237, 267, 296, 316, 356, 370, 395, 444, 445, 474, 534, 555, 632, 712, 740, 790, 888, 890, 948, 1068, 1110, 1185, 1335, 1480, 1580, 1780, 1896, 2136, 2220, 2370, 2670, 2923, 3160, 3293, 3560, 4440, 4740, 5340, 5846, 6586, 7031, 8769, 9480, 9879, 10680, 11692, 13172, 14062, 14615, 16465, 17538, 19758, 21093, 23384, 26344, 28124, 29230, 32930, 35076, 35155, 39516, 42186, 43845, 49395, 56248, 58460, 65860, 70152, 70310, 79032, 84372, 87690, 98790, 105465, 116920, 131720, 140620, 168744, 175380, 197580, 210930, 260147, 281240, 350760, 395160, 421860, 520294, 780441, 843720, 1040588, 1300735, 1560882, 2081176, 2601470, 3121764, 3902205, 5202940, 6243528, 7804410, 10405880, 15608820, 31217640]

約数ペア:

[(1, 31217640), (2, 15608820), (3, 10405880), (4, 7804410), (5, 6243528), (6, 5202940), (8, 3902205), (10, 3121764), (12, 2601470), (15, 2081176), (20, 1560882), (24, 1300735), (30, 1040588), (37, 843720), (40, 780441), (60, 520294), (74, 421860), (79, 395160), (89, 350760), (111, 281240), (120, 260147), (148, 210930), (158, 197580), (178, 175380), (185, 168744), (222, 140620), (237, 131720), (267, 116920), (296, 105465), (316, 98790), (356, 87690), (370, 84372), (395, 79032), (444, 70310), (445, 70152), (474, 65860), (534, 58460), (555, 56248), (632, 49395), (712, 43845), (740, 42186), (790, 39516), (888, 35155), (890, 35076), (948, 32930), (1068, 29230), (1110, 28124), (1185, 26344), (1335, 23384), (1480, 21093), (1580, 19758), (1780, 17538), (1896, 16465), (2136, 14615), (2220, 14062), (2370, 13172), (2670, 11692), (2923, 10680), (3160, 9879), (3293, 9480), (3560, 8769), (4440, 7031), (4740, 6586), (5340, 5846)]