639894.00000000

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{2039}}^1$

素因数の和:2101

約数の個数: 48

約数和(自身を含む): 201592800

約数和(自身を除く): 101661410

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 169, 290, 338, 377, 754, 845, 1690, 1885, 2039, 3770, 4078, 4901, 9802, 10195, 20390, 24505, 26507, 49010, 53014, 59131, 118262, 132535, 265070, 295655, 344591, 591310, 689182, 768703, 1537406, 1722955, 3445910, 3843515, 7687030, 9993139, 19986278, 49965695, 99931390]

約数ペア:

[(1, 99931390), (2, 49965695), (5, 19986278), (10, 9993139), (13, 7687030), (26, 3843515), (29, 3445910), (58, 1722955), (65, 1537406), (130, 768703), (145, 689182), (169, 591310), (290, 344591), (338, 295655), (377, 265070), (754, 132535), (845, 118262), (1690, 59131), (1885, 53014), (2039, 49010), (3770, 26507), (4078, 24505), (4901, 20390), (9802, 10195)]