31344040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:219

約数の個数: 128

約数和(自身を含む): 88704000

約数和(自身を除く): 57359960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 79, 91, 104, 109, 130, 140, 158, 182, 218, 260, 280, 316, 364, 395, 436, 455, 520, 545, 553, 632, 728, 763, 790, 872, 910, 1027, 1090, 1106, 1417, 1526, 1580, 1820, 2054, 2180, 2212, 2765, 2834, 3052, 3160, 3640, 3815, 4108, 4360, 4424, 5135, 5530, 5668, 6104, 7085, 7189, 7630, 8216, 8611, 9919, 10270, 11060, 11336, 14170, 14378, 15260, 17222, 19838, 20540, 22120, 28340, 28756, 30520, 34444, 35945, 39676, 41080, 43055, 49595, 56680, 57512, 60277, 68888, 71890, 79352, 86110, 99190, 111943, 120554, 143780, 172220, 198380, 223886, 241108, 287560, 301385, 344440, 396760, 447772, 482216, 559715, 602770, 783601, 895544, 1119430, 1205540, 1567202, 2238860, 2411080, 3134404, 3918005, 4477720, 6268808, 7836010, 15672020, 31344040]

約数ペア:

[(1, 31344040), (2, 15672020), (4, 7836010), (5, 6268808), (7, 4477720), (8, 3918005), (10, 3134404), (13, 2411080), (14, 2238860), (20, 1567202), (26, 1205540), (28, 1119430), (35, 895544), (40, 783601), (52, 602770), (56, 559715), (65, 482216), (70, 447772), (79, 396760), (91, 344440), (104, 301385), (109, 287560), (130, 241108), (140, 223886), (158, 198380), (182, 172220), (218, 143780), (260, 120554), (280, 111943), (316, 99190), (364, 86110), (395, 79352), (436, 71890), (455, 68888), (520, 60277), (545, 57512), (553, 56680), (632, 49595), (728, 43055), (763, 41080), (790, 39676), (872, 35945), (910, 34444), (1027, 30520), (1090, 28756), (1106, 28340), (1417, 22120), (1526, 20540), (1580, 19838), (1820, 17222), (2054, 15260), (2180, 14378), (2212, 14170), (2765, 11336), (2834, 11060), (3052, 10270), (3160, 9919), (3640, 8611), (3815, 8216), (4108, 7630), (4360, 7189), (4424, 7085), (5135, 6104), (5530, 5668)]