7860280

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:208

約数の個数: 64

約数和(自身を含む): 18714240

約数和(自身を除く): 10853960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 47, 74, 94, 113, 148, 185, 188, 226, 235, 296, 370, 376, 452, 470, 565, 740, 904, 940, 1130, 1480, 1739, 1880, 2260, 3478, 4181, 4520, 5311, 6956, 8362, 8695, 10622, 13912, 16724, 17390, 20905, 21244, 26555, 33448, 34780, 41810, 42488, 53110, 69560, 83620, 106220, 167240, 196507, 212440, 393014, 786028, 982535, 1572056, 1965070, 3930140, 7860280]

約数ペア:

[(1, 7860280), (2, 3930140), (4, 1965070), (5, 1572056), (8, 982535), (10, 786028), (20, 393014), (37, 212440), (40, 196507), (47, 167240), (74, 106220), (94, 83620), (113, 69560), (148, 53110), (185, 42488), (188, 41810), (226, 34780), (235, 33448), (296, 26555), (370, 21244), (376, 20905), (452, 17390), (470, 16724), (565, 13912), (740, 10622), (904, 8695), (940, 8362), (1130, 6956), (1480, 5311), (1739, 4520), (1880, 4181), (2260, 3478)]