19422920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{4013}}^1$

素因数の和:4046

約数の個数: 48

約数和(自身を含む): 48047580

約数和(自身を除く): 28624660

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4013, 4840, 8026, 16052, 20065, 32104, 40130, 44143, 80260, 88286, 160520, 176572, 220715, 353144, 441430, 485573, 882860, 971146, 1765720, 1942292, 2427865, 3884584, 4855730, 9711460, 19422920]

約数ペア:

[(1, 19422920), (2, 9711460), (4, 4855730), (5, 3884584), (8, 2427865), (10, 1942292), (11, 1765720), (20, 971146), (22, 882860), (40, 485573), (44, 441430), (55, 353144), (88, 220715), (110, 176572), (121, 160520), (220, 88286), (242, 80260), (440, 44143), (484, 40130), (605, 32104), (968, 20065), (1210, 16052), (2420, 8026), (4013, 4840)]