261885780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8609}}^1$

素因数の和:8650

約数の個数: 108

約数和(自身を含む): 860293980

約数和(自身を除く): 598408200

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, 169, 180, 195, 234, 260, 338, 390, 468, 507, 585, 676, 780, 845, 1014, 1170, 1521, 1690, 2028, 2340, 2535, 3042, 3380, 5070, 6084, 7605, 8609, 10140, 15210, 17218, 25827, 30420, 34436, 43045, 51654, 77481, 86090, 103308, 111917, 129135, 154962, 172180, 223834, 258270, 309924, 335751, 387405, 447668, 516540, 559585, 671502, 774810, 1007253, 1119170, 1343004, 1454921, 1549620, 1678755, 2014506, 2238340, 2909842, 3357510, 4029012, 4364763, 5036265, 5819684, 6715020, 7274605, 8729526, 10072530, 13094289, 14549210, 17459052, 20145060, 21823815, 26188578, 29098420, 43647630, 52377156, 65471445, 87295260, 130942890, 261885780]

約数ペア:

[(1, 261885780), (2, 130942890), (3, 87295260), (4, 65471445), (5, 52377156), (6, 43647630), (9, 29098420), (10, 26188578), (12, 21823815), (13, 20145060), (15, 17459052), (18, 14549210), (20, 13094289), (26, 10072530), (30, 8729526), (36, 7274605), (39, 6715020), (45, 5819684), (52, 5036265), (60, 4364763), (65, 4029012), (78, 3357510), (90, 2909842), (117, 2238340), (130, 2014506), (156, 1678755), (169, 1549620), (180, 1454921), (195, 1343004), (234, 1119170), (260, 1007253), (338, 774810), (390, 671502), (468, 559585), (507, 516540), (585, 447668), (676, 387405), (780, 335751), (845, 309924), (1014, 258270), (1170, 223834), (1521, 172180), (1690, 154962), (2028, 129135), (2340, 111917), (2535, 103308), (3042, 86090), (3380, 77481), (5070, 51654), (6084, 43045), (7605, 34436), (8609, 30420), (10140, 25827), (15210, 17218)]