401858780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1\times {\mathrm{1523}}^1$

素因数の和:1778

約数の個数: 48

約数和(自身を含む): 860267520

約数和(自身を除く): 458408740

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 167, 316, 334, 395, 668, 790, 835, 1523, 1580, 1670, 3046, 3340, 6092, 7615, 13193, 15230, 26386, 30460, 52772, 65965, 120317, 131930, 240634, 254341, 263860, 481268, 508682, 601585, 1017364, 1203170, 1271705, 2406340, 2543410, 5086820, 20092939, 40185878, 80371756, 100464695, 200929390, 401858780]

約数ペア:

[(1, 401858780), (2, 200929390), (4, 100464695), (5, 80371756), (10, 40185878), (20, 20092939), (79, 5086820), (158, 2543410), (167, 2406340), (316, 1271705), (334, 1203170), (395, 1017364), (668, 601585), (790, 508682), (835, 481268), (1523, 263860), (1580, 254341), (1670, 240634), (3046, 131930), (3340, 120317), (6092, 65965), (7615, 52772), (13193, 30460), (15230, 26386)]