1638237904

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{49297}}^1$

素因数の和:49403

約数の個数: 40

約数和(自身を含む): 3325445888

約数和(自身を除く): 1687207984

約数列:

[1, 2, 4, 8, 16, 31, 62, 67, 124, 134, 248, 268, 496, 536, 1072, 2077, 4154, 8308, 16616, 33232, 49297, 98594, 197188, 394376, 788752, 1528207, 3056414, 3302899, 6112828, 6605798, 12225656, 13211596, 24451312, 26423192, 52846384, 102389869, 204779738, 409559476, 819118952, 1638237904]

約数ペア:

[(1, 1638237904), (2, 819118952), (4, 409559476), (8, 204779738), (16, 102389869), (31, 52846384), (62, 26423192), (67, 24451312), (124, 13211596), (134, 12225656), (248, 6605798), (268, 6112828), (496, 3302899), (536, 3056414), (1072, 1528207), (2077, 788752), (4154, 394376), (8308, 197188), (16616, 98594), (33232, 49297)]