19894160

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:121

約数の個数: 160

約数和(自身を含む): 56996352

約数和(自身を除く): 37102192

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 37, 40, 44, 47, 52, 55, 65, 74, 80, 88, 94, 104, 110, 130, 143, 148, 176, 185, 188, 208, 220, 235, 260, 286, 296, 370, 376, 407, 440, 470, 481, 517, 520, 572, 592, 611, 715, 740, 752, 814, 880, 940, 962, 1034, 1040, 1144, 1222, 1430, 1480, 1628, 1739, 1880, 1924, 2035, 2068, 2288, 2405, 2444, 2585, 2860, 2960, 3055, 3256, 3478, 3760, 3848, 4070, 4136, 4810, 4888, 5170, 5291, 5720, 6110, 6512, 6721, 6956, 7696, 8140, 8272, 8695, 9620, 9776, 10340, 10582, 11440, 12220, 13442, 13912, 16280, 17390, 19129, 19240, 20680, 21164, 22607, 24440, 26455, 26884, 27824, 32560, 33605, 34780, 38258, 38480, 41360, 42328, 45214, 48880, 52910, 53768, 67210, 69560, 76516, 84656, 90428, 95645, 105820, 107536, 113035, 134420, 139120, 153032, 180856, 191290, 211640, 226070, 248677, 268840, 306064, 361712, 382580, 423280, 452140, 497354, 537680, 765160, 904280, 994708, 1243385, 1530320, 1808560, 1989416, 2486770, 3978832, 4973540, 9947080, 19894160]

約数ペア:

[(1, 19894160), (2, 9947080), (4, 4973540), (5, 3978832), (8, 2486770), (10, 1989416), (11, 1808560), (13, 1530320), (16, 1243385), (20, 994708), (22, 904280), (26, 765160), (37, 537680), (40, 497354), (44, 452140), (47, 423280), (52, 382580), (55, 361712), (65, 306064), (74, 268840), (80, 248677), (88, 226070), (94, 211640), (104, 191290), (110, 180856), (130, 153032), (143, 139120), (148, 134420), (176, 113035), (185, 107536), (188, 105820), (208, 95645), (220, 90428), (235, 84656), (260, 76516), (286, 69560), (296, 67210), (370, 53768), (376, 52910), (407, 48880), (440, 45214), (470, 42328), (481, 41360), (517, 38480), (520, 38258), (572, 34780), (592, 33605), (611, 32560), (715, 27824), (740, 26884), (752, 26455), (814, 24440), (880, 22607), (940, 21164), (962, 20680), (1034, 19240), (1040, 19129), (1144, 17390), (1222, 16280), (1430, 13912), (1480, 13442), (1628, 12220), (1739, 11440), (1880, 10582), (1924, 10340), (2035, 9776), (2068, 9620), (2288, 8695), (2405, 8272), (2444, 8140), (2585, 7696), (2860, 6956), (2960, 6721), (3055, 6512), (3256, 6110), (3478, 5720), (3760, 5291), (3848, 5170), (4070, 4888), (4136, 4810)]