20475750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{1187}}^1$

素因数の和:1230

約数の個数: 64

約数和(自身を含む): 53374464

約数和(自身を除く): 32898714

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 25, 30, 46, 50, 69, 75, 115, 125, 138, 150, 230, 250, 345, 375, 575, 690, 750, 1150, 1187, 1725, 2374, 2875, 3450, 3561, 5750, 5935, 7122, 8625, 11870, 17250, 17805, 27301, 29675, 35610, 54602, 59350, 81903, 89025, 136505, 148375, 163806, 178050, 273010, 296750, 409515, 445125, 682525, 819030, 890250, 1365050, 2047575, 3412625, 4095150, 6825250, 10237875, 20475750]

約数ペア:

[(1, 20475750), (2, 10237875), (3, 6825250), (5, 4095150), (6, 3412625), (10, 2047575), (15, 1365050), (23, 890250), (25, 819030), (30, 682525), (46, 445125), (50, 409515), (69, 296750), (75, 273010), (115, 178050), (125, 163806), (138, 148375), (150, 136505), (230, 89025), (250, 81903), (345, 59350), (375, 54602), (575, 35610), (690, 29675), (750, 27301), (1150, 17805), (1187, 17250), (1725, 11870), (2374, 8625), (2875, 7122), (3450, 5935), (3561, 5750)]