20328550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1607}}^1$

素因数の和:1653

約数の個数: 48

約数和(自身を含む): 43068672

約数和(自身を除く): 22740122

約数列:

[1, 2, 5, 10, 11, 22, 23, 25, 46, 50, 55, 110, 115, 230, 253, 275, 506, 550, 575, 1150, 1265, 1607, 2530, 3214, 6325, 8035, 12650, 16070, 17677, 35354, 36961, 40175, 73922, 80350, 88385, 176770, 184805, 369610, 406571, 441925, 813142, 883850, 924025, 1848050, 2032855, 4065710, 10164275, 20328550]

約数ペア:

[(1, 20328550), (2, 10164275), (5, 4065710), (10, 2032855), (11, 1848050), (22, 924025), (23, 883850), (25, 813142), (46, 441925), (50, 406571), (55, 369610), (110, 184805), (115, 176770), (230, 88385), (253, 80350), (275, 73922), (506, 40175), (550, 36961), (575, 35354), (1150, 17677), (1265, 16070), (1607, 12650), (2530, 8035), (3214, 6325)]