55138820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{641}}^1$

素因数の和:701

約数の個数: 96

約数和(自身を含む): 139781376

約数和(自身を除く): 84642556

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 23, 34, 44, 46, 55, 68, 85, 92, 110, 115, 170, 187, 220, 230, 253, 340, 374, 391, 460, 506, 641, 748, 782, 935, 1012, 1265, 1282, 1564, 1870, 1955, 2530, 2564, 3205, 3740, 3910, 4301, 5060, 6410, 7051, 7820, 8602, 10897, 12820, 14102, 14743, 17204, 21505, 21794, 28204, 29486, 35255, 43010, 43588, 54485, 58972, 70510, 73715, 86020, 108970, 119867, 141020, 147430, 162173, 217940, 239734, 250631, 294860, 324346, 479468, 501262, 599335, 648692, 810865, 1002524, 1198670, 1253155, 1621730, 2397340, 2506310, 2756941, 3243460, 5012620, 5513882, 11027764, 13784705, 27569410, 55138820]

約数ペア:

[(1, 55138820), (2, 27569410), (4, 13784705), (5, 11027764), (10, 5513882), (11, 5012620), (17, 3243460), (20, 2756941), (22, 2506310), (23, 2397340), (34, 1621730), (44, 1253155), (46, 1198670), (55, 1002524), (68, 810865), (85, 648692), (92, 599335), (110, 501262), (115, 479468), (170, 324346), (187, 294860), (220, 250631), (230, 239734), (253, 217940), (340, 162173), (374, 147430), (391, 141020), (460, 119867), (506, 108970), (641, 86020), (748, 73715), (782, 70510), (935, 58972), (1012, 54485), (1265, 43588), (1282, 43010), (1564, 35255), (1870, 29486), (1955, 28204), (2530, 21794), (2564, 21505), (3205, 17204), (3740, 14743), (3910, 14102), (4301, 12820), (5060, 10897), (6410, 8602), (7051, 7820)]