221338760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{1733}}^1$

素因数の和:1878

約数の個数: 64

約数和(自身を含む): 519367680

約数和(自身を除く): 298028920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 103, 124, 155, 206, 248, 310, 412, 515, 620, 824, 1030, 1240, 1733, 2060, 3193, 3466, 4120, 6386, 6932, 8665, 12772, 13864, 15965, 17330, 25544, 31930, 34660, 53723, 63860, 69320, 107446, 127720, 178499, 214892, 268615, 356998, 429784, 537230, 713996, 892495, 1074460, 1427992, 1784990, 2148920, 3569980, 5533469, 7139960, 11066938, 22133876, 27667345, 44267752, 55334690, 110669380, 221338760]

約数ペア:

[(1, 221338760), (2, 110669380), (4, 55334690), (5, 44267752), (8, 27667345), (10, 22133876), (20, 11066938), (31, 7139960), (40, 5533469), (62, 3569980), (103, 2148920), (124, 1784990), (155, 1427992), (206, 1074460), (248, 892495), (310, 713996), (412, 537230), (515, 429784), (620, 356998), (824, 268615), (1030, 214892), (1240, 178499), (1733, 127720), (2060, 107446), (3193, 69320), (3466, 63860), (4120, 53723), (6386, 34660), (6932, 31930), (8665, 25544), (12772, 17330), (13864, 15965)]