8144920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1531}}^1$

素因数の和:1568

約数の個数: 64

約数和(自身を含む): 22060800

約数和(自身を除く): 13915880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 1531, 2660, 3062, 5320, 6124, 7655, 10717, 12248, 15310, 21434, 29089, 30620, 42868, 53585, 58178, 61240, 85736, 107170, 116356, 145445, 203623, 214340, 232712, 290890, 407246, 428680, 581780, 814492, 1018115, 1163560, 1628984, 2036230, 4072460, 8144920]

約数ペア:

[(1, 8144920), (2, 4072460), (4, 2036230), (5, 1628984), (7, 1163560), (8, 1018115), (10, 814492), (14, 581780), (19, 428680), (20, 407246), (28, 290890), (35, 232712), (38, 214340), (40, 203623), (56, 145445), (70, 116356), (76, 107170), (95, 85736), (133, 61240), (140, 58178), (152, 53585), (190, 42868), (266, 30620), (280, 29089), (380, 21434), (532, 15310), (665, 12248), (760, 10717), (1064, 7655), (1330, 6124), (1531, 5320), (2660, 3062)]