19665941840

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1\times {\mathrm{16453}}^1$

素因数の和:16756

約数の個数: 80

約数和(自身を含む): 46616683008

約数和(自身を除く): 26950741168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 223, 268, 335, 446, 536, 670, 892, 1072, 1115, 1340, 1784, 2230, 2680, 3568, 4460, 5360, 8920, 14941, 16453, 17840, 29882, 32906, 59764, 65812, 74705, 82265, 119528, 131624, 149410, 164530, 239056, 263248, 298820, 329060, 597640, 658120, 1102351, 1195280, 1316240, 2204702, 3669019, 4409404, 5511755, 7338038, 8818808, 11023510, 14676076, 17637616, 18345095, 22047020, 29352152, 36690190, 44094040, 58704304, 73380380, 88188080, 146760760, 245824273, 293521520, 491648546, 983297092, 1229121365, 1966594184, 2458242730, 3933188368, 4916485460, 9832970920, 19665941840]

約数ペア:

[(1, 19665941840), (2, 9832970920), (4, 4916485460), (5, 3933188368), (8, 2458242730), (10, 1966594184), (16, 1229121365), (20, 983297092), (40, 491648546), (67, 293521520), (80, 245824273), (134, 146760760), (223, 88188080), (268, 73380380), (335, 58704304), (446, 44094040), (536, 36690190), (670, 29352152), (892, 22047020), (1072, 18345095), (1115, 17637616), (1340, 14676076), (1784, 11023510), (2230, 8818808), (2680, 7338038), (3568, 5511755), (4460, 4409404), (5360, 3669019), (8920, 2204702), (14941, 1316240), (16453, 1195280), (17840, 1102351), (29882, 658120), (32906, 597640), (59764, 329060), (65812, 298820), (74705, 263248), (82265, 239056), (119528, 164530), (131624, 149410)]