20452551520

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{164093}}^1$

素因数の和:164168

約数の個数: 96

約数和(自身を含む): 52103126880

約数和(自身を除く): 31650575360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 41, 76, 80, 82, 95, 152, 160, 164, 190, 205, 304, 328, 380, 410, 608, 656, 760, 779, 820, 1312, 1520, 1558, 1640, 3040, 3116, 3280, 3895, 6232, 6560, 7790, 12464, 15580, 24928, 31160, 62320, 124640, 164093, 328186, 656372, 820465, 1312744, 1640930, 2625488, 3117767, 3281860, 5250976, 6235534, 6563720, 6727813, 12471068, 13127440, 13455626, 15588835, 24942136, 26254880, 26911252, 31177670, 33639065, 49884272, 53822504, 62355340, 67278130, 99768544, 107645008, 124710680, 127828447, 134556260, 215290016, 249421360, 255656894, 269112520, 498842720, 511313788, 538225040, 639142235, 1022627576, 1076450080, 1278284470, 2045255152, 2556568940, 4090510304, 5113137880, 10226275760, 20452551520]

約数ペア:

[(1, 20452551520), (2, 10226275760), (4, 5113137880), (5, 4090510304), (8, 2556568940), (10, 2045255152), (16, 1278284470), (19, 1076450080), (20, 1022627576), (32, 639142235), (38, 538225040), (40, 511313788), (41, 498842720), (76, 269112520), (80, 255656894), (82, 249421360), (95, 215290016), (152, 134556260), (160, 127828447), (164, 124710680), (190, 107645008), (205, 99768544), (304, 67278130), (328, 62355340), (380, 53822504), (410, 49884272), (608, 33639065), (656, 31177670), (760, 26911252), (779, 26254880), (820, 24942136), (1312, 15588835), (1520, 13455626), (1558, 13127440), (1640, 12471068), (3040, 6727813), (3116, 6563720), (3280, 6235534), (3895, 5250976), (6232, 3281860), (6560, 3117767), (7790, 2625488), (12464, 1640930), (15580, 1312744), (24928, 820465), (31160, 656372), (62320, 328186), (124640, 164093)]