20970950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1$

素因数の和:462

約数の個数: 96

約数和(自身を含む): 52496640

約数和(自身を除く): 31525690

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 25, 26, 35, 50, 55, 65, 70, 77, 91, 110, 130, 143, 154, 175, 182, 275, 286, 325, 350, 385, 419, 455, 550, 650, 715, 770, 838, 910, 1001, 1430, 1925, 2002, 2095, 2275, 2933, 3575, 3850, 4190, 4550, 4609, 5005, 5447, 5866, 7150, 9218, 10010, 10475, 10894, 14665, 20950, 23045, 25025, 27235, 29330, 32263, 38129, 46090, 50050, 54470, 59917, 64526, 73325, 76258, 115225, 119834, 136175, 146650, 161315, 190645, 230450, 272350, 299585, 322630, 381290, 419419, 599170, 806575, 838838, 953225, 1497925, 1613150, 1906450, 2097095, 2995850, 4194190, 10485475, 20970950]

約数ペア:

[(1, 20970950), (2, 10485475), (5, 4194190), (7, 2995850), (10, 2097095), (11, 1906450), (13, 1613150), (14, 1497925), (22, 953225), (25, 838838), (26, 806575), (35, 599170), (50, 419419), (55, 381290), (65, 322630), (70, 299585), (77, 272350), (91, 230450), (110, 190645), (130, 161315), (143, 146650), (154, 136175), (175, 119834), (182, 115225), (275, 76258), (286, 73325), (325, 64526), (350, 59917), (385, 54470), (419, 50050), (455, 46090), (550, 38129), (650, 32263), (715, 29330), (770, 27235), (838, 25025), (910, 23045), (1001, 20950), (1430, 14665), (1925, 10894), (2002, 10475), (2095, 10010), (2275, 9218), (2933, 7150), (3575, 5866), (3850, 5447), (4190, 5005), (4550, 4609)]