204049780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{1889}}^1$

素因数の和:2400

約数の個数: 48

約数和(自身を含む): 468659520

約数和(自身を除く): 264609740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 491, 982, 1889, 1964, 2455, 3778, 4910, 5401, 7556, 9445, 9820, 10802, 18890, 20779, 21604, 27005, 37780, 41558, 54010, 83116, 103895, 108020, 207790, 415580, 927499, 1854998, 3709996, 4637495, 9274990, 10202489, 18549980, 20404978, 40809956, 51012445, 102024890, 204049780]

約数ペア:

[(1, 204049780), (2, 102024890), (4, 51012445), (5, 40809956), (10, 20404978), (11, 18549980), (20, 10202489), (22, 9274990), (44, 4637495), (55, 3709996), (110, 1854998), (220, 927499), (491, 415580), (982, 207790), (1889, 108020), (1964, 103895), (2455, 83116), (3778, 54010), (4910, 41558), (5401, 37780), (7556, 27005), (9445, 21604), (9820, 20779), (10802, 18890)]