31489380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13457}}^1$

素因数の和:13485

約数の個数: 72

約数和(自身を含む): 102872952

約数和(自身を除く): 71383572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 13457, 26914, 40371, 53828, 67285, 80742, 121113, 134570, 161484, 174941, 201855, 242226, 269140, 349882, 403710, 484452, 524823, 605565, 699764, 807420, 874705, 1049646, 1211130, 1574469, 1749410, 2099292, 2422260, 2624115, 3148938, 3498820, 5248230, 6297876, 7872345, 10496460, 15744690, 31489380]

約数ペア:

[(1, 31489380), (2, 15744690), (3, 10496460), (4, 7872345), (5, 6297876), (6, 5248230), (9, 3498820), (10, 3148938), (12, 2624115), (13, 2422260), (15, 2099292), (18, 1749410), (20, 1574469), (26, 1211130), (30, 1049646), (36, 874705), (39, 807420), (45, 699764), (52, 605565), (60, 524823), (65, 484452), (78, 403710), (90, 349882), (117, 269140), (130, 242226), (156, 201855), (180, 174941), (195, 161484), (234, 134570), (260, 121113), (390, 80742), (468, 67285), (585, 53828), (780, 40371), (1170, 26914), (2340, 13457)]