20731852372

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1187}}^1\times {\mathrm{8101}}^1$

素因数の和:9317

約数の個数: 72

約数和(自身を含む): 46085342688

約数和(自身を除く): 25353490316

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 1187, 2156, 2374, 4748, 8101, 8309, 13057, 16202, 16618, 26114, 32404, 33236, 52228, 56707, 58163, 89111, 91399, 113414, 116326, 178222, 182798, 226828, 232652, 356444, 365596, 396949, 623777, 639793, 793898, 1247554, 1279586, 1587796, 2495108, 2559172, 4366439, 8732878, 9615887, 17465756, 19231774, 38463548, 67311209, 105774757, 134622418, 211549514, 269244836, 423099028, 471178463, 740423299, 942356926, 1480846598, 1884713852, 2961693196, 5182963093, 10365926186, 20731852372]

約数ペア:

[(1, 20731852372), (2, 10365926186), (4, 5182963093), (7, 2961693196), (11, 1884713852), (14, 1480846598), (22, 942356926), (28, 740423299), (44, 471178463), (49, 423099028), (77, 269244836), (98, 211549514), (154, 134622418), (196, 105774757), (308, 67311209), (539, 38463548), (1078, 19231774), (1187, 17465756), (2156, 9615887), (2374, 8732878), (4748, 4366439), (8101, 2559172), (8309, 2495108), (13057, 1587796), (16202, 1279586), (16618, 1247554), (26114, 793898), (32404, 639793), (33236, 623777), (52228, 396949), (56707, 365596), (58163, 356444), (89111, 232652), (91399, 226828), (113414, 182798), (116326, 178222)]