257887890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{971}}^1$

素因数の和:1224

約数の個数: 96

約数和(自身を含む): 726014016

約数和(自身を除く): 468126126

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 227, 234, 390, 454, 585, 681, 971, 1135, 1170, 1362, 1942, 2043, 2270, 2913, 2951, 3405, 4086, 4855, 5826, 5902, 6810, 8739, 8853, 9710, 10215, 12623, 14565, 14755, 17478, 17706, 20430, 25246, 26559, 29130, 29510, 37869, 43695, 44265, 53118, 63115, 75738, 87390, 88530, 113607, 126230, 132795, 189345, 220417, 227214, 265590, 378690, 440834, 568035, 661251, 1102085, 1136070, 1322502, 1983753, 2204170, 2865421, 3306255, 3967506, 5730842, 6612510, 8596263, 9918765, 14327105, 17192526, 19837530, 25788789, 28654210, 42981315, 51577578, 85962630, 128943945, 257887890]

約数ペア:

[(1, 257887890), (2, 128943945), (3, 85962630), (5, 51577578), (6, 42981315), (9, 28654210), (10, 25788789), (13, 19837530), (15, 17192526), (18, 14327105), (26, 9918765), (30, 8596263), (39, 6612510), (45, 5730842), (65, 3967506), (78, 3306255), (90, 2865421), (117, 2204170), (130, 1983753), (195, 1322502), (227, 1136070), (234, 1102085), (390, 661251), (454, 568035), (585, 440834), (681, 378690), (971, 265590), (1135, 227214), (1170, 220417), (1362, 189345), (1942, 132795), (2043, 126230), (2270, 113607), (2913, 88530), (2951, 87390), (3405, 75738), (4086, 63115), (4855, 53118), (5826, 44265), (5902, 43695), (6810, 37869), (8739, 29510), (8853, 29130), (9710, 26559), (10215, 25246), (12623, 20430), (14565, 17706), (14755, 17478)]