81531684

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^2\times {\mathrm{1489}}^1$

素因数の和:1531

約数の個数: 90

約数和(自身を含む): 230951490

約数和(自身を除く): 149419806

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 169, 234, 324, 338, 351, 468, 507, 676, 702, 1014, 1053, 1404, 1489, 1521, 2028, 2106, 2978, 3042, 4212, 4467, 4563, 5956, 6084, 8934, 9126, 13401, 13689, 17868, 18252, 19357, 26802, 27378, 38714, 40203, 53604, 54756, 58071, 77428, 80406, 116142, 120609, 160812, 174213, 232284, 241218, 251641, 348426, 482436, 503282, 522639, 696852, 754923, 1006564, 1045278, 1509846, 1567917, 2090556, 2264769, 3019692, 3135834, 4529538, 6271668, 6794307, 9059076, 13588614, 20382921, 27177228, 40765842, 81531684]

約数ペア:

[(1, 81531684), (2, 40765842), (3, 27177228), (4, 20382921), (6, 13588614), (9, 9059076), (12, 6794307), (13, 6271668), (18, 4529538), (26, 3135834), (27, 3019692), (36, 2264769), (39, 2090556), (52, 1567917), (54, 1509846), (78, 1045278), (81, 1006564), (108, 754923), (117, 696852), (156, 522639), (162, 503282), (169, 482436), (234, 348426), (324, 251641), (338, 241218), (351, 232284), (468, 174213), (507, 160812), (676, 120609), (702, 116142), (1014, 80406), (1053, 77428), (1404, 58071), (1489, 54756), (1521, 53604), (2028, 40203), (2106, 38714), (2978, 27378), (3042, 26802), (4212, 19357), (4467, 18252), (4563, 17868), (5956, 13689), (6084, 13401), (8934, 9126)]