278301520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{8147}}^1$

素因数の和:8228

約数の個数: 80

約数和(自身を含む): 751701888

約数和(自身を除く): 473400368

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 427, 488, 560, 610, 854, 976, 1220, 1708, 2135, 2440, 3416, 4270, 4880, 6832, 8147, 8540, 16294, 17080, 32588, 34160, 40735, 57029, 65176, 81470, 114058, 130352, 162940, 228116, 285145, 325880, 456232, 496967, 570290, 651760, 912464, 993934, 1140580, 1987868, 2281160, 2484835, 3478769, 3975736, 4562320, 4969670, 6957538, 7951472, 9939340, 13915076, 17393845, 19878680, 27830152, 34787690, 39757360, 55660304, 69575380, 139150760, 278301520]

約数ペア:

[(1, 278301520), (2, 139150760), (4, 69575380), (5, 55660304), (7, 39757360), (8, 34787690), (10, 27830152), (14, 19878680), (16, 17393845), (20, 13915076), (28, 9939340), (35, 7951472), (40, 6957538), (56, 4969670), (61, 4562320), (70, 3975736), (80, 3478769), (112, 2484835), (122, 2281160), (140, 1987868), (244, 1140580), (280, 993934), (305, 912464), (427, 651760), (488, 570290), (560, 496967), (610, 456232), (854, 325880), (976, 285145), (1220, 228116), (1708, 162940), (2135, 130352), (2440, 114058), (3416, 81470), (4270, 65176), (4880, 57029), (6832, 40735), (8147, 34160), (8540, 32588), (16294, 17080)]