31438680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2879}}^1$

素因数の和:2913

約数の個数: 128

約数和(自身を含む): 116121600

約数和(自身を除く): 84682920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 2184, 2730, 2879, 3640, 5460, 5758, 8637, 10920, 11516, 14395, 17274, 20153, 23032, 28790, 34548, 37427, 40306, 43185, 57580, 60459, 69096, 74854, 80612, 86370, 100765, 112281, 115160, 120918, 149708, 161224, 172740, 187135, 201530, 224562, 241836, 261989, 299416, 302295, 345480, 374270, 403060, 449124, 483672, 523978, 561405, 604590, 748540, 785967, 806120, 898248, 1047956, 1122810, 1209180, 1309945, 1497080, 1571934, 2095912, 2245620, 2418360, 2619890, 3143868, 3929835, 4491240, 5239780, 6287736, 7859670, 10479560, 15719340, 31438680]

約数ペア:

[(1, 31438680), (2, 15719340), (3, 10479560), (4, 7859670), (5, 6287736), (6, 5239780), (7, 4491240), (8, 3929835), (10, 3143868), (12, 2619890), (13, 2418360), (14, 2245620), (15, 2095912), (20, 1571934), (21, 1497080), (24, 1309945), (26, 1209180), (28, 1122810), (30, 1047956), (35, 898248), (39, 806120), (40, 785967), (42, 748540), (52, 604590), (56, 561405), (60, 523978), (65, 483672), (70, 449124), (78, 403060), (84, 374270), (91, 345480), (104, 302295), (105, 299416), (120, 261989), (130, 241836), (140, 224562), (156, 201530), (168, 187135), (182, 172740), (195, 161224), (210, 149708), (260, 120918), (273, 115160), (280, 112281), (312, 100765), (364, 86370), (390, 80612), (420, 74854), (455, 69096), (520, 60459), (546, 57580), (728, 43185), (780, 40306), (840, 37427), (910, 34548), (1092, 28790), (1365, 23032), (1560, 20153), (1820, 17274), (2184, 14395), (2730, 11516), (2879, 10920), (3640, 8637), (5460, 5758)]