821340

素因数分解:

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

素因数の和:50

約数の個数: 108

約数和(自身を含む): 2797704

約数和(自身を除く): 1976364

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 169, 180, 195, 234, 243, 260, 270, 324, 338, 351, 390, 405, 468, 486, 507, 540, 585, 676, 702, 780, 810, 845, 972, 1014, 1053, 1170, 1215, 1404, 1521, 1620, 1690, 1755, 2028, 2106, 2340, 2430, 2535, 3042, 3159, 3380, 3510, 4212, 4563, 4860, 5070, 5265, 6084, 6318, 7020, 7605, 9126, 10140, 10530, 12636, 13689, 15210, 15795, 18252, 21060, 22815, 27378, 30420, 31590, 41067, 45630, 54756, 63180, 68445, 82134, 91260, 136890, 164268, 205335, 273780, 410670, 821340]

約数ペア:

[(1, 821340), (2, 410670), (3, 273780), (4, 205335), (5, 164268), (6, 136890), (9, 91260), (10, 82134), (12, 68445), (13, 63180), (15, 54756), (18, 45630), (20, 41067), (26, 31590), (27, 30420), (30, 27378), (36, 22815), (39, 21060), (45, 18252), (52, 15795), (54, 15210), (60, 13689), (65, 12636), (78, 10530), (81, 10140), (90, 9126), (108, 7605), (117, 7020), (130, 6318), (135, 6084), (156, 5265), (162, 5070), (169, 4860), (180, 4563), (195, 4212), (234, 3510), (243, 3380), (260, 3159), (270, 3042), (324, 2535), (338, 2430), (351, 2340), (390, 2106), (405, 2028), (468, 1755), (486, 1690), (507, 1620), (540, 1521), (585, 1404), (676, 1215), (702, 1170), (780, 1053), (810, 1014), (845, 972)]