20743580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7253}}^1$

素因数の和:7286

約数の個数: 48

約数和(自身を含む): 51184224

約数和(自身を除く): 30440644

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 7253, 14506, 29012, 36265, 72530, 79783, 94289, 145060, 159566, 188578, 319132, 377156, 398915, 471445, 797830, 942890, 1037179, 1595660, 1885780, 2074358, 4148716, 5185895, 10371790, 20743580]

約数ペア:

[(1, 20743580), (2, 10371790), (4, 5185895), (5, 4148716), (10, 2074358), (11, 1885780), (13, 1595660), (20, 1037179), (22, 942890), (26, 797830), (44, 471445), (52, 398915), (55, 377156), (65, 319132), (110, 188578), (130, 159566), (143, 145060), (220, 94289), (260, 79783), (286, 72530), (572, 36265), (715, 29012), (1430, 14506), (2860, 7253)]