209548240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{1049}}^1$

素因数の和:1300

約数の個数: 80

約数和(自身を含む): 534340800

約数和(自身を除く): 324792560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 227, 440, 454, 880, 908, 1049, 1135, 1816, 2098, 2270, 2497, 3632, 4196, 4540, 4994, 5245, 8392, 9080, 9988, 10490, 11539, 12485, 16784, 18160, 19976, 20980, 23078, 24970, 39952, 41960, 46156, 49940, 57695, 83920, 92312, 99880, 115390, 184624, 199760, 230780, 238123, 461560, 476246, 923120, 952492, 1190615, 1904984, 2381230, 2619353, 3809968, 4762460, 5238706, 9524920, 10477412, 13096765, 19049840, 20954824, 26193530, 41909648, 52387060, 104774120, 209548240]

約数ペア:

[(1, 209548240), (2, 104774120), (4, 52387060), (5, 41909648), (8, 26193530), (10, 20954824), (11, 19049840), (16, 13096765), (20, 10477412), (22, 9524920), (40, 5238706), (44, 4762460), (55, 3809968), (80, 2619353), (88, 2381230), (110, 1904984), (176, 1190615), (220, 952492), (227, 923120), (440, 476246), (454, 461560), (880, 238123), (908, 230780), (1049, 199760), (1135, 184624), (1816, 115390), (2098, 99880), (2270, 92312), (2497, 83920), (3632, 57695), (4196, 49940), (4540, 46156), (4994, 41960), (5245, 39952), (8392, 24970), (9080, 23078), (9988, 20980), (10490, 19976), (11539, 18160), (12485, 16784)]