51886720

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:306

約数の個数: 128

約数和(自身を含む): 138801600

約数和(自身を除く): 86914880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 64, 68, 76, 80, 85, 95, 128, 136, 152, 160, 170, 190, 251, 272, 304, 320, 323, 340, 380, 502, 544, 608, 640, 646, 680, 760, 1004, 1088, 1216, 1255, 1292, 1360, 1520, 1615, 2008, 2176, 2432, 2510, 2584, 2720, 3040, 3230, 4016, 4267, 4769, 5020, 5168, 5440, 6080, 6460, 8032, 8534, 9538, 10040, 10336, 10880, 12160, 12920, 16064, 17068, 19076, 20080, 20672, 21335, 23845, 25840, 32128, 34136, 38152, 40160, 41344, 42670, 47690, 51680, 68272, 76304, 80320, 81073, 85340, 95380, 103360, 136544, 152608, 160640, 162146, 170680, 190760, 206720, 273088, 305216, 324292, 341360, 381520, 405365, 546176, 610432, 648584, 682720, 763040, 810730, 1297168, 1365440, 1526080, 1621460, 2594336, 2730880, 3052160, 3242920, 5188672, 6485840, 10377344, 12971680, 25943360, 51886720]

約数ペア:

[(1, 51886720), (2, 25943360), (4, 12971680), (5, 10377344), (8, 6485840), (10, 5188672), (16, 3242920), (17, 3052160), (19, 2730880), (20, 2594336), (32, 1621460), (34, 1526080), (38, 1365440), (40, 1297168), (64, 810730), (68, 763040), (76, 682720), (80, 648584), (85, 610432), (95, 546176), (128, 405365), (136, 381520), (152, 341360), (160, 324292), (170, 305216), (190, 273088), (251, 206720), (272, 190760), (304, 170680), (320, 162146), (323, 160640), (340, 152608), (380, 136544), (502, 103360), (544, 95380), (608, 85340), (640, 81073), (646, 80320), (680, 76304), (760, 68272), (1004, 51680), (1088, 47690), (1216, 42670), (1255, 41344), (1292, 40160), (1360, 38152), (1520, 34136), (1615, 32128), (2008, 25840), (2176, 23845), (2432, 21335), (2510, 20672), (2584, 20080), (2720, 19076), (3040, 17068), (3230, 16064), (4016, 12920), (4267, 12160), (4769, 10880), (5020, 10336), (5168, 10040), (5440, 9538), (6080, 8534), (6460, 8032)]