207327920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{971}}^1$

素因数の和:1158

約数の個数: 80

約数和(自身を含む): 514172448

約数和(自身を除く): 306844528

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 157, 170, 272, 314, 340, 628, 680, 785, 971, 1256, 1360, 1570, 1942, 2512, 2669, 3140, 3884, 4855, 5338, 6280, 7768, 9710, 10676, 12560, 13345, 15536, 16507, 19420, 21352, 26690, 33014, 38840, 42704, 53380, 66028, 77680, 82535, 106760, 132056, 152447, 165070, 213520, 264112, 304894, 330140, 609788, 660280, 762235, 1219576, 1320560, 1524470, 2439152, 2591599, 3048940, 5183198, 6097880, 10366396, 12195760, 12957995, 20732792, 25915990, 41465584, 51831980, 103663960, 207327920]

約数ペア:

[(1, 207327920), (2, 103663960), (4, 51831980), (5, 41465584), (8, 25915990), (10, 20732792), (16, 12957995), (17, 12195760), (20, 10366396), (34, 6097880), (40, 5183198), (68, 3048940), (80, 2591599), (85, 2439152), (136, 1524470), (157, 1320560), (170, 1219576), (272, 762235), (314, 660280), (340, 609788), (628, 330140), (680, 304894), (785, 264112), (971, 213520), (1256, 165070), (1360, 152447), (1570, 132056), (1942, 106760), (2512, 82535), (2669, 77680), (3140, 66028), (3884, 53380), (4855, 42704), (5338, 38840), (6280, 33014), (7768, 26690), (9710, 21352), (10676, 19420), (12560, 16507), (13345, 15536)]