20833240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 49455360

約数和(自身を除く): 28622120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 53, 62, 106, 124, 155, 212, 248, 265, 310, 317, 424, 530, 620, 634, 1060, 1240, 1268, 1585, 1643, 2120, 2536, 3170, 3286, 6340, 6572, 8215, 9827, 12680, 13144, 16430, 16801, 19654, 32860, 33602, 39308, 49135, 65720, 67204, 78616, 84005, 98270, 134408, 168010, 196540, 336020, 393080, 520831, 672040, 1041662, 2083324, 2604155, 4166648, 5208310, 10416620, 20833240]

約数ペア:

[(1, 20833240), (2, 10416620), (4, 5208310), (5, 4166648), (8, 2604155), (10, 2083324), (20, 1041662), (31, 672040), (40, 520831), (53, 393080), (62, 336020), (106, 196540), (124, 168010), (155, 134408), (212, 98270), (248, 84005), (265, 78616), (310, 67204), (317, 65720), (424, 49135), (530, 39308), (620, 33602), (634, 32860), (1060, 19654), (1240, 16801), (1268, 16430), (1585, 13144), (1643, 12680), (2120, 9827), (2536, 8215), (3170, 6572), (3286, 6340)]