71904420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{383}}^1$

素因数の和:554

約数の個数: 144

約数和(自身を含む): 251596800

約数和(自身を除く): 179692380

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, 149, 180, 210, 252, 298, 315, 383, 420, 447, 596, 630, 745, 766, 894, 1043, 1149, 1260, 1341, 1490, 1532, 1788, 1915, 2086, 2235, 2298, 2681, 2682, 2980, 3129, 3447, 3830, 4172, 4470, 4596, 5215, 5362, 5364, 5745, 6258, 6705, 6894, 7660, 8043, 8940, 9387, 10430, 10724, 11490, 12516, 13405, 13410, 13788, 15645, 16086, 17235, 18774, 20860, 22980, 24129, 26810, 26820, 31290, 32172, 34470, 37548, 40215, 46935, 48258, 53620, 57067, 62580, 68940, 80430, 93870, 96516, 114134, 120645, 160860, 171201, 187740, 228268, 241290, 285335, 342402, 399469, 482580, 513603, 570670, 684804, 798938, 856005, 1027206, 1141340, 1198407, 1597876, 1712010, 1997345, 2054412, 2396814, 2568015, 3424020, 3595221, 3994690, 4793628, 5136030, 5992035, 7190442, 7989380, 10272060, 11984070, 14380884, 17976105, 23968140, 35952210, 71904420]

約数ペア:

[(1, 71904420), (2, 35952210), (3, 23968140), (4, 17976105), (5, 14380884), (6, 11984070), (7, 10272060), (9, 7989380), (10, 7190442), (12, 5992035), (14, 5136030), (15, 4793628), (18, 3994690), (20, 3595221), (21, 3424020), (28, 2568015), (30, 2396814), (35, 2054412), (36, 1997345), (42, 1712010), (45, 1597876), (60, 1198407), (63, 1141340), (70, 1027206), (84, 856005), (90, 798938), (105, 684804), (126, 570670), (140, 513603), (149, 482580), (180, 399469), (210, 342402), (252, 285335), (298, 241290), (315, 228268), (383, 187740), (420, 171201), (447, 160860), (596, 120645), (630, 114134), (745, 96516), (766, 93870), (894, 80430), (1043, 68940), (1149, 62580), (1260, 57067), (1341, 53620), (1490, 48258), (1532, 46935), (1788, 40215), (1915, 37548), (2086, 34470), (2235, 32172), (2298, 31290), (2681, 26820), (2682, 26810), (2980, 24129), (3129, 22980), (3447, 20860), (3830, 18774), (4172, 17235), (4470, 16086), (4596, 15645), (5215, 13788), (5362, 13410), (5364, 13405), (5745, 12516), (6258, 11490), (6705, 10724), (6894, 10430), (7660, 9387), (8043, 8940)]