308749140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{245039}}^1$

素因数の和:245061

約数の個数: 72

約数和(自身を含む): 1070334720

約数和(自身を除く): 761585580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 245039, 490078, 735117, 980156, 1225195, 1470234, 1715273, 2205351, 2450390, 2940468, 3430546, 3675585, 4410702, 4900780, 5145819, 6861092, 7351170, 8576365, 8821404, 10291638, 11026755, 14702340, 15437457, 17152730, 20583276, 22053510, 25729095, 30874914, 34305460, 44107020, 51458190, 61749828, 77187285, 102916380, 154374570, 308749140]

約数ペア:

[(1, 308749140), (2, 154374570), (3, 102916380), (4, 77187285), (5, 61749828), (6, 51458190), (7, 44107020), (9, 34305460), (10, 30874914), (12, 25729095), (14, 22053510), (15, 20583276), (18, 17152730), (20, 15437457), (21, 14702340), (28, 11026755), (30, 10291638), (35, 8821404), (36, 8576365), (42, 7351170), (45, 6861092), (60, 5145819), (63, 4900780), (70, 4410702), (84, 3675585), (90, 3430546), (105, 2940468), (126, 2450390), (140, 2205351), (180, 1715273), (210, 1470234), (252, 1225195), (315, 980156), (420, 735117), (630, 490078), (1260, 245039)]