20996520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9209}}^1$

素因数の和:9242

約数の個数: 64

約数和(自身を含む): 66312000

約数和(自身を除く): 45315480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 9209, 18418, 27627, 36836, 46045, 55254, 73672, 92090, 110508, 138135, 174971, 184180, 221016, 276270, 349942, 368360, 524913, 552540, 699884, 874855, 1049826, 1105080, 1399768, 1749710, 2099652, 2624565, 3499420, 4199304, 5249130, 6998840, 10498260, 20996520]

約数ペア:

[(1, 20996520), (2, 10498260), (3, 6998840), (4, 5249130), (5, 4199304), (6, 3499420), (8, 2624565), (10, 2099652), (12, 1749710), (15, 1399768), (19, 1105080), (20, 1049826), (24, 874855), (30, 699884), (38, 552540), (40, 524913), (57, 368360), (60, 349942), (76, 276270), (95, 221016), (114, 184180), (120, 174971), (152, 138135), (190, 110508), (228, 92090), (285, 73672), (380, 55254), (456, 46045), (570, 36836), (760, 27627), (1140, 18418), (2280, 9209)]