40401520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 101297088

約数和(自身を除く): 60895568

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 61, 68, 80, 85, 122, 136, 170, 244, 272, 305, 340, 487, 488, 610, 680, 974, 976, 1037, 1220, 1360, 1948, 2074, 2435, 2440, 3896, 4148, 4870, 4880, 5185, 7792, 8279, 8296, 9740, 10370, 16558, 16592, 19480, 20740, 29707, 33116, 38960, 41395, 41480, 59414, 66232, 82790, 82960, 118828, 132464, 148535, 165580, 237656, 297070, 331160, 475312, 505019, 594140, 662320, 1010038, 1188280, 2020076, 2376560, 2525095, 4040152, 5050190, 8080304, 10100380, 20200760, 40401520]

約数ペア:

[(1, 40401520), (2, 20200760), (4, 10100380), (5, 8080304), (8, 5050190), (10, 4040152), (16, 2525095), (17, 2376560), (20, 2020076), (34, 1188280), (40, 1010038), (61, 662320), (68, 594140), (80, 505019), (85, 475312), (122, 331160), (136, 297070), (170, 237656), (244, 165580), (272, 148535), (305, 132464), (340, 118828), (487, 82960), (488, 82790), (610, 66232), (680, 59414), (974, 41480), (976, 41395), (1037, 38960), (1220, 33116), (1360, 29707), (1948, 20740), (2074, 19480), (2435, 16592), (2440, 16558), (3896, 10370), (4148, 9740), (4870, 8296), (4880, 8279), (5185, 7792)]