1911800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{79}}^1$

素因数の和:117

約数の個数: 72

約数和(自身を含む): 4947600

約数和(自身を除く): 3035800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 79, 88, 100, 110, 121, 158, 200, 220, 242, 275, 316, 395, 440, 484, 550, 605, 632, 790, 869, 968, 1100, 1210, 1580, 1738, 1975, 2200, 2420, 3025, 3160, 3476, 3950, 4345, 4840, 6050, 6952, 7900, 8690, 9559, 12100, 15800, 17380, 19118, 21725, 24200, 34760, 38236, 43450, 47795, 76472, 86900, 95590, 173800, 191180, 238975, 382360, 477950, 955900, 1911800]

約数ペア:

[(1, 1911800), (2, 955900), (4, 477950), (5, 382360), (8, 238975), (10, 191180), (11, 173800), (20, 95590), (22, 86900), (25, 76472), (40, 47795), (44, 43450), (50, 38236), (55, 34760), (79, 24200), (88, 21725), (100, 19118), (110, 17380), (121, 15800), (158, 12100), (200, 9559), (220, 8690), (242, 7900), (275, 6952), (316, 6050), (395, 4840), (440, 4345), (484, 3950), (550, 3476), (605, 3160), (632, 3025), (790, 2420), (869, 2200), (968, 1975), (1100, 1738), (1210, 1580)]