78715780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1619}}^1$

素因数の和:1669

約数の個数: 96

約数和(自身を含む): 205752960

約数和(自身を除く): 127037180

約数列:

[1, 2, 4, 5, 10, 11, 13, 17, 20, 22, 26, 34, 44, 52, 55, 65, 68, 85, 110, 130, 143, 170, 187, 220, 221, 260, 286, 340, 374, 442, 572, 715, 748, 884, 935, 1105, 1430, 1619, 1870, 2210, 2431, 2860, 3238, 3740, 4420, 4862, 6476, 8095, 9724, 12155, 16190, 17809, 21047, 24310, 27523, 32380, 35618, 42094, 48620, 55046, 71236, 84188, 89045, 105235, 110092, 137615, 178090, 210470, 231517, 275230, 302753, 356180, 357799, 420940, 463034, 550460, 605506, 715598, 926068, 1157585, 1211012, 1431196, 1513765, 1788995, 2315170, 3027530, 3577990, 3935789, 4630340, 6055060, 7155980, 7871578, 15743156, 19678945, 39357890, 78715780]

約数ペア:

[(1, 78715780), (2, 39357890), (4, 19678945), (5, 15743156), (10, 7871578), (11, 7155980), (13, 6055060), (17, 4630340), (20, 3935789), (22, 3577990), (26, 3027530), (34, 2315170), (44, 1788995), (52, 1513765), (55, 1431196), (65, 1211012), (68, 1157585), (85, 926068), (110, 715598), (130, 605506), (143, 550460), (170, 463034), (187, 420940), (220, 357799), (221, 356180), (260, 302753), (286, 275230), (340, 231517), (374, 210470), (442, 178090), (572, 137615), (715, 110092), (748, 105235), (884, 89045), (935, 84188), (1105, 71236), (1430, 55046), (1619, 48620), (1870, 42094), (2210, 35618), (2431, 32380), (2860, 27523), (3238, 24310), (3740, 21047), (4420, 17809), (4862, 16190), (6476, 12155), (8095, 9724)]