421778980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{11117}}^1$

素因数の和:11404

約数の個数: 48

約数和(自身を含む): 1016096256

約数和(自身を除く): 594317276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 271, 542, 1084, 1355, 1897, 2710, 3794, 5420, 7588, 9485, 11117, 18970, 22234, 37940, 44468, 55585, 77819, 111170, 155638, 222340, 311276, 389095, 778190, 1556380, 3012707, 6025414, 12050828, 15063535, 21088949, 30127070, 42177898, 60254140, 84355796, 105444745, 210889490, 421778980]

約数ペア:

[(1, 421778980), (2, 210889490), (4, 105444745), (5, 84355796), (7, 60254140), (10, 42177898), (14, 30127070), (20, 21088949), (28, 15063535), (35, 12050828), (70, 6025414), (140, 3012707), (271, 1556380), (542, 778190), (1084, 389095), (1355, 311276), (1897, 222340), (2710, 155638), (3794, 111170), (5420, 77819), (7588, 55585), (9485, 44468), (11117, 37940), (18970, 22234)]