138217840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{55733}}^1$

素因数の和:55777

約数の個数: 40

約数和(自身を含む): 331728768

約数和(自身を除く): 193510928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 55733, 111466, 222932, 278665, 445864, 557330, 891728, 1114660, 1727723, 2229320, 3455446, 4458640, 6910892, 8638615, 13821784, 17277230, 27643568, 34554460, 69108920, 138217840]

約数ペア:

[(1, 138217840), (2, 69108920), (4, 34554460), (5, 27643568), (8, 17277230), (10, 13821784), (16, 8638615), (20, 6910892), (31, 4458640), (40, 3455446), (62, 2229320), (80, 1727723), (124, 1114660), (155, 891728), (248, 557330), (310, 445864), (496, 278665), (620, 222932), (1240, 111466), (2480, 55733)]