28739970

素因数分解:

$2^1\times 3^2\times 5^1\times 7^5\times {\mathrm{19}}^1$

素因数の和:67

約数の個数: 144

約数和(自身を含む): 91765440

約数和(自身を除く): 63025470

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 30, 35, 38, 42, 45, 49, 57, 63, 70, 90, 95, 98, 105, 114, 126, 133, 147, 171, 190, 210, 245, 266, 285, 294, 315, 342, 343, 399, 441, 490, 570, 630, 665, 686, 735, 798, 855, 882, 931, 1029, 1197, 1330, 1470, 1710, 1715, 1862, 1995, 2058, 2205, 2394, 2401, 2793, 3087, 3430, 3990, 4410, 4655, 4802, 5145, 5586, 5985, 6174, 6517, 7203, 8379, 9310, 10290, 11970, 12005, 13034, 13965, 14406, 15435, 16758, 16807, 19551, 21609, 24010, 27930, 30870, 32585, 33614, 36015, 39102, 41895, 43218, 45619, 50421, 58653, 65170, 72030, 83790, 84035, 91238, 97755, 100842, 108045, 117306, 136857, 151263, 168070, 195510, 216090, 228095, 252105, 273714, 293265, 302526, 319333, 410571, 456190, 504210, 586530, 638666, 684285, 756315, 821142, 957999, 1368570, 1512630, 1596665, 1915998, 2052855, 2873997, 3193330, 4105710, 4789995, 5747994, 9579990, 14369985, 28739970]

約数ペア:

[(1, 28739970), (2, 14369985), (3, 9579990), (5, 5747994), (6, 4789995), (7, 4105710), (9, 3193330), (10, 2873997), (14, 2052855), (15, 1915998), (18, 1596665), (19, 1512630), (21, 1368570), (30, 957999), (35, 821142), (38, 756315), (42, 684285), (45, 638666), (49, 586530), (57, 504210), (63, 456190), (70, 410571), (90, 319333), (95, 302526), (98, 293265), (105, 273714), (114, 252105), (126, 228095), (133, 216090), (147, 195510), (171, 168070), (190, 151263), (210, 136857), (245, 117306), (266, 108045), (285, 100842), (294, 97755), (315, 91238), (342, 84035), (343, 83790), (399, 72030), (441, 65170), (490, 58653), (570, 50421), (630, 45619), (665, 43218), (686, 41895), (735, 39102), (798, 36015), (855, 33614), (882, 32585), (931, 30870), (1029, 27930), (1197, 24010), (1330, 21609), (1470, 19551), (1710, 16807), (1715, 16758), (1862, 15435), (1995, 14406), (2058, 13965), (2205, 13034), (2394, 12005), (2401, 11970), (2793, 10290), (3087, 9310), (3430, 8379), (3990, 7203), (4410, 6517), (4655, 6174), (4802, 5985), (5145, 5586)]