1298291240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{443}}^1\times {\mathrm{1787}}^1$

素因数の和:2282

約数の個数: 64

約数和(自身を含む): 3000836160

約数和(自身を除く): 1702544920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 443, 820, 886, 1640, 1772, 1787, 2215, 3544, 3574, 4430, 7148, 8860, 8935, 14296, 17720, 17870, 18163, 35740, 36326, 71480, 72652, 73267, 90815, 145304, 146534, 181630, 293068, 363260, 366335, 586136, 726520, 732670, 791641, 1465340, 1583282, 2930680, 3166564, 3958205, 6333128, 7916410, 15832820, 31665640, 32457281, 64914562, 129829124, 162286405, 259658248, 324572810, 649145620, 1298291240]

約数ペア:

[(1, 1298291240), (2, 649145620), (4, 324572810), (5, 259658248), (8, 162286405), (10, 129829124), (20, 64914562), (40, 32457281), (41, 31665640), (82, 15832820), (164, 7916410), (205, 6333128), (328, 3958205), (410, 3166564), (443, 2930680), (820, 1583282), (886, 1465340), (1640, 791641), (1772, 732670), (1787, 726520), (2215, 586136), (3544, 366335), (3574, 363260), (4430, 293068), (7148, 181630), (8860, 146534), (8935, 145304), (14296, 90815), (17720, 73267), (17870, 72652), (18163, 71480), (35740, 36326)]