20698660920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24641263}}^1$

素因数の和:24641284

約数の個数: 64

約数和(自身を含む): 70966840320

約数和(自身を除く): 50268179400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24641263, 49282526, 73923789, 98565052, 123206315, 147847578, 172488841, 197130104, 246412630, 295695156, 344977682, 369618945, 492825260, 517466523, 591390312, 689955364, 739237890, 862444205, 985650520, 1034933046, 1379910728, 1478475780, 1724888410, 2069866092, 2587332615, 2956951560, 3449776820, 4139732184, 5174665230, 6899553640, 10349330460, 20698660920]

約数ペア:

[(1, 20698660920), (2, 10349330460), (3, 6899553640), (4, 5174665230), (5, 4139732184), (6, 3449776820), (7, 2956951560), (8, 2587332615), (10, 2069866092), (12, 1724888410), (14, 1478475780), (15, 1379910728), (20, 1034933046), (21, 985650520), (24, 862444205), (28, 739237890), (30, 689955364), (35, 591390312), (40, 517466523), (42, 492825260), (56, 369618945), (60, 344977682), (70, 295695156), (84, 246412630), (105, 197130104), (120, 172488841), (140, 147847578), (168, 123206315), (210, 98565052), (280, 73923789), (420, 49282526), (840, 24641263)]