20181040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 160

約数和(自身を含む): 57853440

約数和(自身を除く): 37672400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 19, 20, 22, 34, 38, 40, 44, 55, 68, 71, 76, 80, 85, 88, 95, 110, 136, 142, 152, 170, 176, 187, 190, 209, 220, 272, 284, 304, 323, 340, 355, 374, 380, 418, 440, 568, 646, 680, 710, 748, 760, 781, 836, 880, 935, 1045, 1136, 1207, 1292, 1349, 1360, 1420, 1496, 1520, 1562, 1615, 1672, 1870, 2090, 2414, 2584, 2698, 2840, 2992, 3124, 3230, 3344, 3553, 3740, 3905, 4180, 4828, 5168, 5396, 5680, 6035, 6248, 6460, 6745, 7106, 7480, 7810, 8360, 9656, 10792, 12070, 12496, 12920, 13277, 13490, 14212, 14839, 14960, 15620, 16720, 17765, 19312, 21584, 22933, 24140, 25840, 26554, 26980, 28424, 29678, 31240, 35530, 45866, 48280, 53108, 53960, 56848, 59356, 62480, 66385, 71060, 74195, 91732, 96560, 106216, 107920, 114665, 118712, 132770, 142120, 148390, 183464, 212432, 229330, 237424, 252263, 265540, 284240, 296780, 366928, 458660, 504526, 531080, 593560, 917320, 1009052, 1062160, 1187120, 1261315, 1834640, 2018104, 2522630, 4036208, 5045260, 10090520, 20181040]

約数ペア:

[(1, 20181040), (2, 10090520), (4, 5045260), (5, 4036208), (8, 2522630), (10, 2018104), (11, 1834640), (16, 1261315), (17, 1187120), (19, 1062160), (20, 1009052), (22, 917320), (34, 593560), (38, 531080), (40, 504526), (44, 458660), (55, 366928), (68, 296780), (71, 284240), (76, 265540), (80, 252263), (85, 237424), (88, 229330), (95, 212432), (110, 183464), (136, 148390), (142, 142120), (152, 132770), (170, 118712), (176, 114665), (187, 107920), (190, 106216), (209, 96560), (220, 91732), (272, 74195), (284, 71060), (304, 66385), (323, 62480), (340, 59356), (355, 56848), (374, 53960), (380, 53108), (418, 48280), (440, 45866), (568, 35530), (646, 31240), (680, 29678), (710, 28424), (748, 26980), (760, 26554), (781, 25840), (836, 24140), (880, 22933), (935, 21584), (1045, 19312), (1136, 17765), (1207, 16720), (1292, 15620), (1349, 14960), (1360, 14839), (1420, 14212), (1496, 13490), (1520, 13277), (1562, 12920), (1615, 12496), (1672, 12070), (1870, 10792), (2090, 9656), (2414, 8360), (2584, 7810), (2698, 7480), (2840, 7106), (2992, 6745), (3124, 6460), (3230, 6248), (3344, 6035), (3553, 5680), (3740, 5396), (3905, 5168), (4180, 4828)]