18483920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2539}}^1$

素因数の和:2572

約数の個数: 80

約数和(自身を含む): 52913280

約数和(自身を除く): 34429360

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 2539, 3640, 5078, 7280, 10156, 12695, 17773, 20312, 25390, 33007, 35546, 40624, 50780, 66014, 71092, 88865, 101560, 132028, 142184, 165035, 177730, 203120, 231049, 264056, 284368, 330070, 355460, 462098, 528112, 660140, 710920, 924196, 1155245, 1320280, 1421840, 1848392, 2310490, 2640560, 3696784, 4620980, 9241960, 18483920]

約数ペア:

[(1, 18483920), (2, 9241960), (4, 4620980), (5, 3696784), (7, 2640560), (8, 2310490), (10, 1848392), (13, 1421840), (14, 1320280), (16, 1155245), (20, 924196), (26, 710920), (28, 660140), (35, 528112), (40, 462098), (52, 355460), (56, 330070), (65, 284368), (70, 264056), (80, 231049), (91, 203120), (104, 177730), (112, 165035), (130, 142184), (140, 132028), (182, 101560), (208, 88865), (260, 71092), (280, 66014), (364, 50780), (455, 40624), (520, 35546), (560, 33007), (728, 25390), (910, 20312), (1040, 17773), (1456, 12695), (1820, 10156), (2539, 7280), (3640, 5078)]