19660980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1553}}^1$

素因数の和:1776

約数の個数: 48

約数和(自身を含む): 55347264

約数和(自身を除く): 35686284

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 211, 422, 633, 844, 1055, 1266, 1553, 2110, 2532, 3106, 3165, 4220, 4659, 6212, 6330, 7765, 9318, 12660, 15530, 18636, 23295, 31060, 46590, 93180, 327683, 655366, 983049, 1310732, 1638415, 1966098, 3276830, 3932196, 4915245, 6553660, 9830490, 19660980]

約数ペア:

[(1, 19660980), (2, 9830490), (3, 6553660), (4, 4915245), (5, 3932196), (6, 3276830), (10, 1966098), (12, 1638415), (15, 1310732), (20, 983049), (30, 655366), (60, 327683), (211, 93180), (422, 46590), (633, 31060), (844, 23295), (1055, 18636), (1266, 15530), (1553, 12660), (2110, 9318), (2532, 7765), (3106, 6330), (3165, 6212), (4220, 4659)]