89007920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{65447}}^1$

素因数の和:65477

約数の個数: 40

約数和(自身を含む): 219119904

約数和(自身を除く): 130111984

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 65447, 130894, 261788, 327235, 523576, 654470, 1047152, 1112599, 1308940, 2225198, 2617880, 4450396, 5235760, 5562995, 8900792, 11125990, 17801584, 22251980, 44503960, 89007920]

約数ペア:

[(1, 89007920), (2, 44503960), (4, 22251980), (5, 17801584), (8, 11125990), (10, 8900792), (16, 5562995), (17, 5235760), (20, 4450396), (34, 2617880), (40, 2225198), (68, 1308940), (80, 1112599), (85, 1047152), (136, 654470), (170, 523576), (272, 327235), (340, 261788), (680, 130894), (1360, 65447)]