78449840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4519}}^1$

素因数の和:4570

約数の個数: 80

約数和(自身を含む): 215224320

約数和(自身を除く): 136774480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 4519, 8680, 9038, 17360, 18076, 22595, 31633, 36152, 45190, 63266, 72304, 90380, 126532, 140089, 158165, 180760, 253064, 280178, 316330, 361520, 506128, 560356, 632660, 700445, 980623, 1120712, 1265320, 1400890, 1961246, 2241424, 2530640, 2801780, 3922492, 4903115, 5603560, 7844984, 9806230, 11207120, 15689968, 19612460, 39224920, 78449840]

約数ペア:

[(1, 78449840), (2, 39224920), (4, 19612460), (5, 15689968), (7, 11207120), (8, 9806230), (10, 7844984), (14, 5603560), (16, 4903115), (20, 3922492), (28, 2801780), (31, 2530640), (35, 2241424), (40, 1961246), (56, 1400890), (62, 1265320), (70, 1120712), (80, 980623), (112, 700445), (124, 632660), (140, 560356), (155, 506128), (217, 361520), (248, 316330), (280, 280178), (310, 253064), (434, 180760), (496, 158165), (560, 140089), (620, 126532), (868, 90380), (1085, 72304), (1240, 63266), (1736, 45190), (2170, 36152), (2480, 31633), (3472, 22595), (4340, 18076), (4519, 17360), (8680, 9038)]