261745380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{111857}}^1$

素因数の和:111885

約数の個数: 72

約数和(自身を含む): 855042552

約数和(自身を除く): 593297172

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, 111857, 223714, 335571, 447428, 559285, 671142, 1006713, 1118570, 1342284, 1454141, 1677855, 2013426, 2237140, 2908282, 3355710, 4026852, 4362423, 5033565, 5816564, 6711420, 7270705, 8724846, 10067130, 13087269, 14541410, 17449692, 20134260, 21812115, 26174538, 29082820, 43624230, 52349076, 65436345, 87248460, 130872690, 261745380]

約数ペア:

[(1, 261745380), (2, 130872690), (3, 87248460), (4, 65436345), (5, 52349076), (6, 43624230), (9, 29082820), (10, 26174538), (12, 21812115), (13, 20134260), (15, 17449692), (18, 14541410), (20, 13087269), (26, 10067130), (30, 8724846), (36, 7270705), (39, 6711420), (45, 5816564), (52, 5033565), (60, 4362423), (65, 4026852), (78, 3355710), (90, 2908282), (117, 2237140), (130, 2013426), (156, 1677855), (180, 1454141), (195, 1342284), (234, 1118570), (260, 1006713), (390, 671142), (468, 559285), (585, 447428), (780, 335571), (1170, 223714), (2340, 111857)]