20271749600

素因数分解:

$2^5\times 5^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{4889}}^1$

素因数の和:5053

約数の個数: 144

約数和(自身を含む): 50883305760

約数和(自身を除く): 30611556160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 71, 73, 80, 100, 142, 146, 160, 200, 284, 292, 355, 365, 400, 568, 584, 710, 730, 800, 1136, 1168, 1420, 1460, 1775, 1825, 2272, 2336, 2840, 2920, 3550, 3650, 4889, 5183, 5680, 5840, 7100, 7300, 9778, 10366, 11360, 11680, 14200, 14600, 19556, 20732, 24445, 25915, 28400, 29200, 39112, 41464, 48890, 51830, 56800, 58400, 78224, 82928, 97780, 103660, 122225, 129575, 156448, 165856, 195560, 207320, 244450, 259150, 347119, 356897, 391120, 414640, 488900, 518300, 694238, 713794, 782240, 829280, 977800, 1036600, 1388476, 1427588, 1735595, 1784485, 1955600, 2073200, 2776952, 2855176, 3471190, 3568970, 3911200, 4146400, 5553904, 5710352, 6942380, 7137940, 8677975, 8922425, 11107808, 11420704, 13884760, 14275880, 17355950, 17844850, 25339687, 27769520, 28551760, 34711900, 35689700, 50679374, 55539040, 57103520, 69423800, 71379400, 101358748, 126698435, 138847600, 142758800, 202717496, 253396870, 277695200, 285517600, 405434992, 506793740, 633492175, 810869984, 1013587480, 1266984350, 2027174960, 2533968700, 4054349920, 5067937400, 10135874800, 20271749600]

約数ペア:

[(1, 20271749600), (2, 10135874800), (4, 5067937400), (5, 4054349920), (8, 2533968700), (10, 2027174960), (16, 1266984350), (20, 1013587480), (25, 810869984), (32, 633492175), (40, 506793740), (50, 405434992), (71, 285517600), (73, 277695200), (80, 253396870), (100, 202717496), (142, 142758800), (146, 138847600), (160, 126698435), (200, 101358748), (284, 71379400), (292, 69423800), (355, 57103520), (365, 55539040), (400, 50679374), (568, 35689700), (584, 34711900), (710, 28551760), (730, 27769520), (800, 25339687), (1136, 17844850), (1168, 17355950), (1420, 14275880), (1460, 13884760), (1775, 11420704), (1825, 11107808), (2272, 8922425), (2336, 8677975), (2840, 7137940), (2920, 6942380), (3550, 5710352), (3650, 5553904), (4889, 4146400), (5183, 3911200), (5680, 3568970), (5840, 3471190), (7100, 2855176), (7300, 2776952), (9778, 2073200), (10366, 1955600), (11360, 1784485), (11680, 1735595), (14200, 1427588), (14600, 1388476), (19556, 1036600), (20732, 977800), (24445, 829280), (25915, 782240), (28400, 713794), (29200, 694238), (39112, 518300), (41464, 488900), (48890, 414640), (51830, 391120), (56800, 356897), (58400, 347119), (78224, 259150), (82928, 244450), (97780, 207320), (103660, 195560), (122225, 165856), (129575, 156448)]