1821986725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1\times {\mathrm{659}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 2502339840

約数和(自身を除く): 680353115

約数列:

[1, 5, 13, 25, 47, 65, 181, 235, 325, 611, 659, 905, 1175, 2353, 3055, 3295, 4525, 8507, 8567, 11765, 15275, 16475, 30973, 42535, 42835, 58825, 110591, 119279, 154865, 212675, 214175, 402649, 552955, 596395, 774325, 1550627, 2013245, 2764775, 2981975, 5606113, 7753135, 10066225, 28030565, 38765675, 72879469, 140152825, 364397345, 1821986725]

約数ペア:

[(1, 1821986725), (5, 364397345), (13, 140152825), (25, 72879469), (47, 38765675), (65, 28030565), (181, 10066225), (235, 7753135), (325, 5606113), (611, 2981975), (659, 2764775), (905, 2013245), (1175, 1550627), (2353, 774325), (3055, 596395), (3295, 552955), (4525, 402649), (8507, 214175), (8567, 212675), (11765, 154865), (15275, 119279), (16475, 110591), (30973, 58825), (42535, 42835)]