19784050

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2767}}^1$

素因数の和:2803

約数の個数: 48

約数和(自身を含む): 43247232

約数和(自身を除く): 23463182

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 130, 143, 275, 286, 325, 550, 650, 715, 1430, 2767, 3575, 5534, 7150, 13835, 27670, 30437, 35971, 60874, 69175, 71942, 138350, 152185, 179855, 304370, 359710, 395681, 760925, 791362, 899275, 1521850, 1798550, 1978405, 3956810, 9892025, 19784050]

約数ペア:

[(1, 19784050), (2, 9892025), (5, 3956810), (10, 1978405), (11, 1798550), (13, 1521850), (22, 899275), (25, 791362), (26, 760925), (50, 395681), (55, 359710), (65, 304370), (110, 179855), (130, 152185), (143, 138350), (275, 71942), (286, 69175), (325, 60874), (550, 35971), (650, 30437), (715, 27670), (1430, 13835), (2767, 7150), (3575, 5534)]