28268760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18121}}^1$

素因数の和:18148

約数の個数: 64

約数和(自身を含む): 91334880

約数和(自身を除く): 63066120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 18121, 36242, 54363, 72484, 90605, 108726, 144968, 181210, 217452, 235573, 271815, 362420, 434904, 471146, 543630, 706719, 724840, 942292, 1087260, 1177865, 1413438, 1884584, 2174520, 2355730, 2826876, 3533595, 4711460, 5653752, 7067190, 9422920, 14134380, 28268760]

約数ペア:

[(1, 28268760), (2, 14134380), (3, 9422920), (4, 7067190), (5, 5653752), (6, 4711460), (8, 3533595), (10, 2826876), (12, 2355730), (13, 2174520), (15, 1884584), (20, 1413438), (24, 1177865), (26, 1087260), (30, 942292), (39, 724840), (40, 706719), (52, 543630), (60, 471146), (65, 434904), (78, 362420), (104, 271815), (120, 235573), (130, 217452), (156, 181210), (195, 144968), (260, 108726), (312, 90605), (390, 72484), (520, 54363), (780, 36242), (1560, 18121)]