18402440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{229}}^1$

素因数の和:295

約数の個数: 96

約数和(自身を含む): 49555800

約数和(自身を除く): 31153360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 49, 56, 70, 82, 98, 140, 164, 196, 205, 229, 245, 280, 287, 328, 392, 410, 458, 490, 574, 820, 916, 980, 1145, 1148, 1435, 1603, 1640, 1832, 1960, 2009, 2290, 2296, 2870, 3206, 4018, 4580, 5740, 6412, 8015, 8036, 9160, 9389, 10045, 11221, 11480, 12824, 16030, 16072, 18778, 20090, 22442, 32060, 37556, 40180, 44884, 46945, 56105, 64120, 65723, 75112, 80360, 89768, 93890, 112210, 131446, 187780, 224420, 262892, 328615, 375560, 448840, 460061, 525784, 657230, 920122, 1314460, 1840244, 2300305, 2628920, 3680488, 4600610, 9201220, 18402440]

約数ペア:

[(1, 18402440), (2, 9201220), (4, 4600610), (5, 3680488), (7, 2628920), (8, 2300305), (10, 1840244), (14, 1314460), (20, 920122), (28, 657230), (35, 525784), (40, 460061), (41, 448840), (49, 375560), (56, 328615), (70, 262892), (82, 224420), (98, 187780), (140, 131446), (164, 112210), (196, 93890), (205, 89768), (229, 80360), (245, 75112), (280, 65723), (287, 64120), (328, 56105), (392, 46945), (410, 44884), (458, 40180), (490, 37556), (574, 32060), (820, 22442), (916, 20090), (980, 18778), (1145, 16072), (1148, 16030), (1435, 12824), (1603, 11480), (1640, 11221), (1832, 10045), (1960, 9389), (2009, 9160), (2290, 8036), (2296, 8015), (2870, 6412), (3206, 5740), (4018, 4580)]