28487906980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3778237}}^1$

素因数の和:3778288

約数の個数: 48

約数和(自身を含む): 66648118320

約数和(自身を除く): 38160211340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 3770, 7540, 3778237, 7556474, 15112948, 18891185, 37782370, 49117081, 75564740, 98234162, 109568873, 196468324, 219137746, 245585405, 438275492, 491170810, 547844365, 982341620, 1095688730, 1424395349, 2191377460, 2848790698, 5697581396, 7121976745, 14243953490, 28487906980]

約数ペア:

[(1, 28487906980), (2, 14243953490), (4, 7121976745), (5, 5697581396), (10, 2848790698), (13, 2191377460), (20, 1424395349), (26, 1095688730), (29, 982341620), (52, 547844365), (58, 491170810), (65, 438275492), (116, 245585405), (130, 219137746), (145, 196468324), (260, 109568873), (290, 98234162), (377, 75564740), (580, 49117081), (754, 37782370), (1508, 18891185), (1885, 15112948), (3770, 7556474), (7540, 3778237)]