21950500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1$

素因数の和:350

約数の個数: 96

約数和(自身を含む): 56504448

約数和(自身を除く): 34553948

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 65, 100, 110, 125, 130, 143, 220, 250, 260, 275, 286, 307, 325, 500, 550, 572, 614, 650, 715, 1100, 1228, 1300, 1375, 1430, 1535, 1625, 2750, 2860, 3070, 3250, 3377, 3575, 3991, 5500, 6140, 6500, 6754, 7150, 7675, 7982, 13508, 14300, 15350, 15964, 16885, 17875, 19955, 30700, 33770, 35750, 38375, 39910, 43901, 67540, 71500, 76750, 79820, 84425, 87802, 99775, 153500, 168850, 175604, 199550, 219505, 337700, 399100, 422125, 439010, 498875, 844250, 878020, 997750, 1097525, 1688500, 1995500, 2195050, 4390100, 5487625, 10975250, 21950500]

約数ペア:

[(1, 21950500), (2, 10975250), (4, 5487625), (5, 4390100), (10, 2195050), (11, 1995500), (13, 1688500), (20, 1097525), (22, 997750), (25, 878020), (26, 844250), (44, 498875), (50, 439010), (52, 422125), (55, 399100), (65, 337700), (100, 219505), (110, 199550), (125, 175604), (130, 168850), (143, 153500), (220, 99775), (250, 87802), (260, 84425), (275, 79820), (286, 76750), (307, 71500), (325, 67540), (500, 43901), (550, 39910), (572, 38375), (614, 35750), (650, 33770), (715, 30700), (1100, 19955), (1228, 17875), (1300, 16885), (1375, 15964), (1430, 15350), (1535, 14300), (1625, 13508), (2750, 7982), (2860, 7675), (3070, 7150), (3250, 6754), (3377, 6500), (3575, 6140), (3991, 5500)]