81451890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1619}}^1$

素因数の和:1688

約数の個数: 96

約数和(自身を含む): 233513280

約数和(自身を除く): 152061390

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 43, 45, 65, 78, 86, 90, 117, 129, 130, 195, 215, 234, 258, 387, 390, 430, 559, 585, 645, 774, 1118, 1170, 1290, 1619, 1677, 1935, 2795, 3238, 3354, 3870, 4857, 5031, 5590, 8095, 8385, 9714, 10062, 14571, 16190, 16770, 21047, 24285, 25155, 29142, 42094, 48570, 50310, 63141, 69617, 72855, 105235, 126282, 139234, 145710, 189423, 208851, 210470, 315705, 348085, 378846, 417702, 626553, 631410, 696170, 905021, 947115, 1044255, 1253106, 1810042, 1894230, 2088510, 2715063, 3132765, 4525105, 5430126, 6265530, 8145189, 9050210, 13575315, 16290378, 27150630, 40725945, 81451890]

約数ペア:

[(1, 81451890), (2, 40725945), (3, 27150630), (5, 16290378), (6, 13575315), (9, 9050210), (10, 8145189), (13, 6265530), (15, 5430126), (18, 4525105), (26, 3132765), (30, 2715063), (39, 2088510), (43, 1894230), (45, 1810042), (65, 1253106), (78, 1044255), (86, 947115), (90, 905021), (117, 696170), (129, 631410), (130, 626553), (195, 417702), (215, 378846), (234, 348085), (258, 315705), (387, 210470), (390, 208851), (430, 189423), (559, 145710), (585, 139234), (645, 126282), (774, 105235), (1118, 72855), (1170, 69617), (1290, 63141), (1619, 50310), (1677, 48570), (1935, 42094), (2795, 29142), (3238, 25155), (3354, 24285), (3870, 21047), (4857, 16770), (5031, 16190), (5590, 14571), (8095, 10062), (8385, 9714)]