2018202040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1\times {\mathrm{271}}^1$

素因数の和:581

約数の個数: 128

約数和(自身を含む): 4935168000

約数和(自身を除く): 2916965960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 239, 271, 328, 380, 410, 478, 542, 760, 779, 820, 956, 1084, 1195, 1355, 1558, 1640, 1912, 2168, 2390, 2710, 3116, 3895, 4541, 4780, 5149, 5420, 6232, 7790, 9082, 9560, 9799, 10298, 10840, 11111, 15580, 18164, 19598, 20596, 22222, 22705, 25745, 31160, 36328, 39196, 41192, 44444, 45410, 48995, 51490, 55555, 64769, 78392, 88888, 90820, 97990, 102980, 111110, 129538, 181640, 186181, 195980, 205960, 211109, 222220, 259076, 323845, 372362, 391960, 422218, 444440, 518152, 647690, 744724, 844436, 930905, 1055545, 1230611, 1295380, 1489448, 1688872, 1861810, 2111090, 2461222, 2590760, 2655529, 3723620, 4222180, 4922444, 5311058, 6153055, 7447240, 8444360, 9844888, 10622116, 12306110, 13277645, 21244232, 24612220, 26555290, 49224440, 50455051, 53110580, 100910102, 106221160, 201820204, 252275255, 403640408, 504550510, 1009101020, 2018202040]

約数ペア:

[(1, 2018202040), (2, 1009101020), (4, 504550510), (5, 403640408), (8, 252275255), (10, 201820204), (19, 106221160), (20, 100910102), (38, 53110580), (40, 50455051), (41, 49224440), (76, 26555290), (82, 24612220), (95, 21244232), (152, 13277645), (164, 12306110), (190, 10622116), (205, 9844888), (239, 8444360), (271, 7447240), (328, 6153055), (380, 5311058), (410, 4922444), (478, 4222180), (542, 3723620), (760, 2655529), (779, 2590760), (820, 2461222), (956, 2111090), (1084, 1861810), (1195, 1688872), (1355, 1489448), (1558, 1295380), (1640, 1230611), (1912, 1055545), (2168, 930905), (2390, 844436), (2710, 744724), (3116, 647690), (3895, 518152), (4541, 444440), (4780, 422218), (5149, 391960), (5420, 372362), (6232, 323845), (7790, 259076), (9082, 222220), (9560, 211109), (9799, 205960), (10298, 195980), (10840, 186181), (11111, 181640), (15580, 129538), (18164, 111110), (19598, 102980), (20596, 97990), (22222, 90820), (22705, 88888), (25745, 78392), (31160, 64769), (36328, 55555), (39196, 51490), (41192, 48995), (44444, 45410)]