7728760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 19051200

約数和(自身を除く): 11322440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 89, 104, 130, 167, 178, 260, 334, 356, 445, 520, 668, 712, 835, 890, 1157, 1336, 1670, 1780, 2171, 2314, 3340, 3560, 4342, 4628, 5785, 6680, 8684, 9256, 10855, 11570, 14863, 17368, 21710, 23140, 29726, 43420, 46280, 59452, 74315, 86840, 118904, 148630, 193219, 297260, 386438, 594520, 772876, 966095, 1545752, 1932190, 3864380, 7728760]

約数ペア:

[(1, 7728760), (2, 3864380), (4, 1932190), (5, 1545752), (8, 966095), (10, 772876), (13, 594520), (20, 386438), (26, 297260), (40, 193219), (52, 148630), (65, 118904), (89, 86840), (104, 74315), (130, 59452), (167, 46280), (178, 43420), (260, 29726), (334, 23140), (356, 21710), (445, 17368), (520, 14863), (668, 11570), (712, 10855), (835, 9256), (890, 8684), (1157, 6680), (1336, 5785), (1670, 4628), (1780, 4342), (2171, 3560), (2314, 3340)]