1900976720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{19687}}^1$

素因数の和:19788

約数の個数: 80

約数和(自身を含む): 4745910528

約数和(自身を除く): 2844933808

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 71, 80, 85, 136, 142, 170, 272, 284, 340, 355, 568, 680, 710, 1136, 1207, 1360, 1420, 2414, 2840, 4828, 5680, 6035, 9656, 12070, 19312, 19687, 24140, 39374, 48280, 78748, 96560, 98435, 157496, 196870, 314992, 334679, 393740, 669358, 787480, 1338716, 1397777, 1574960, 1673395, 2677432, 2795554, 3346790, 5354864, 5591108, 6693580, 6988885, 11182216, 13387160, 13977770, 22364432, 23762209, 26774320, 27955540, 47524418, 55911080, 95048836, 111822160, 118811045, 190097672, 237622090, 380195344, 475244180, 950488360, 1900976720]

約数ペア:

[(1, 1900976720), (2, 950488360), (4, 475244180), (5, 380195344), (8, 237622090), (10, 190097672), (16, 118811045), (17, 111822160), (20, 95048836), (34, 55911080), (40, 47524418), (68, 27955540), (71, 26774320), (80, 23762209), (85, 22364432), (136, 13977770), (142, 13387160), (170, 11182216), (272, 6988885), (284, 6693580), (340, 5591108), (355, 5354864), (568, 3346790), (680, 2795554), (710, 2677432), (1136, 1673395), (1207, 1574960), (1360, 1397777), (1420, 1338716), (2414, 787480), (2840, 669358), (4828, 393740), (5680, 334679), (6035, 314992), (9656, 196870), (12070, 157496), (19312, 98435), (19687, 96560), (24140, 78748), (39374, 48280)]