21375760

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:94

約数の個数: 160

約数和(自身を含む): 62496000

約数和(自身を除く): 41120240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 41, 49, 56, 70, 76, 80, 82, 95, 98, 112, 133, 140, 152, 164, 190, 196, 205, 245, 266, 280, 287, 304, 328, 343, 380, 392, 410, 490, 532, 560, 574, 656, 665, 686, 760, 779, 784, 820, 931, 980, 1064, 1148, 1330, 1372, 1435, 1520, 1558, 1640, 1715, 1862, 1960, 2009, 2128, 2296, 2660, 2744, 2870, 3116, 3280, 3430, 3724, 3895, 3920, 4018, 4592, 4655, 5320, 5453, 5488, 5740, 6232, 6517, 6860, 7448, 7790, 8036, 9310, 10045, 10640, 10906, 11480, 12464, 13034, 13720, 14063, 14896, 15580, 16072, 18620, 20090, 21812, 22960, 26068, 27265, 27440, 28126, 31160, 32144, 32585, 37240, 38171, 40180, 43624, 52136, 54530, 56252, 62320, 65170, 70315, 74480, 76342, 80360, 87248, 104272, 109060, 112504, 130340, 140630, 152684, 160720, 190855, 218120, 225008, 260680, 267197, 281260, 305368, 381710, 436240, 521360, 534394, 562520, 610736, 763420, 1068788, 1125040, 1335985, 1526840, 2137576, 2671970, 3053680, 4275152, 5343940, 10687880, 21375760]

約数ペア:

[(1, 21375760), (2, 10687880), (4, 5343940), (5, 4275152), (7, 3053680), (8, 2671970), (10, 2137576), (14, 1526840), (16, 1335985), (19, 1125040), (20, 1068788), (28, 763420), (35, 610736), (38, 562520), (40, 534394), (41, 521360), (49, 436240), (56, 381710), (70, 305368), (76, 281260), (80, 267197), (82, 260680), (95, 225008), (98, 218120), (112, 190855), (133, 160720), (140, 152684), (152, 140630), (164, 130340), (190, 112504), (196, 109060), (205, 104272), (245, 87248), (266, 80360), (280, 76342), (287, 74480), (304, 70315), (328, 65170), (343, 62320), (380, 56252), (392, 54530), (410, 52136), (490, 43624), (532, 40180), (560, 38171), (574, 37240), (656, 32585), (665, 32144), (686, 31160), (760, 28126), (779, 27440), (784, 27265), (820, 26068), (931, 22960), (980, 21812), (1064, 20090), (1148, 18620), (1330, 16072), (1372, 15580), (1435, 14896), (1520, 14063), (1558, 13720), (1640, 13034), (1715, 12464), (1862, 11480), (1960, 10906), (2009, 10640), (2128, 10045), (2296, 9310), (2660, 8036), (2744, 7790), (2870, 7448), (3116, 6860), (3280, 6517), (3430, 6232), (3724, 5740), (3895, 5488), (3920, 5453), (4018, 5320), (4592, 4655)]