78885440

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^2\times {\mathrm{853}}^1$

素因数の和:904

約数の個数: 84

約数和(自身を含む): 199779636

約数和(自身を除く): 120894196

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 289, 320, 340, 544, 578, 680, 853, 1088, 1156, 1360, 1445, 1706, 2312, 2720, 2890, 3412, 4265, 4624, 5440, 5780, 6824, 8530, 9248, 11560, 13648, 14501, 17060, 18496, 23120, 27296, 29002, 34120, 46240, 54592, 58004, 68240, 72505, 92480, 116008, 136480, 145010, 232016, 246517, 272960, 290020, 464032, 493034, 580040, 928064, 986068, 1160080, 1232585, 1972136, 2320160, 2465170, 3944272, 4640320, 4930340, 7888544, 9860680, 15777088, 19721360, 39442720, 78885440]

約数ペア:

[(1, 78885440), (2, 39442720), (4, 19721360), (5, 15777088), (8, 9860680), (10, 7888544), (16, 4930340), (17, 4640320), (20, 3944272), (32, 2465170), (34, 2320160), (40, 1972136), (64, 1232585), (68, 1160080), (80, 986068), (85, 928064), (136, 580040), (160, 493034), (170, 464032), (272, 290020), (289, 272960), (320, 246517), (340, 232016), (544, 145010), (578, 136480), (680, 116008), (853, 92480), (1088, 72505), (1156, 68240), (1360, 58004), (1445, 54592), (1706, 46240), (2312, 34120), (2720, 29002), (2890, 27296), (3412, 23120), (4265, 18496), (4624, 17060), (5440, 14501), (5780, 13648), (6824, 11560), (8530, 9248)]