13240960

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1217}}^1$

素因数の和:1253

約数の個数: 64

約数和(自身を含む): 33543720

約数和(自身を除く): 20302760

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1217, 1360, 2176, 2434, 2720, 4868, 5440, 6085, 9736, 10880, 12170, 19472, 20689, 24340, 38944, 41378, 48680, 77888, 82756, 97360, 103445, 155776, 165512, 194720, 206890, 331024, 389440, 413780, 662048, 778880, 827560, 1324096, 1655120, 2648192, 3310240, 6620480, 13240960]

約数ペア:

[(1, 13240960), (2, 6620480), (4, 3310240), (5, 2648192), (8, 1655120), (10, 1324096), (16, 827560), (17, 778880), (20, 662048), (32, 413780), (34, 389440), (40, 331024), (64, 206890), (68, 194720), (80, 165512), (85, 155776), (128, 103445), (136, 97360), (160, 82756), (170, 77888), (272, 48680), (320, 41378), (340, 38944), (544, 24340), (640, 20689), (680, 19472), (1088, 12170), (1217, 10880), (1360, 9736), (2176, 6085), (2434, 5440), (2720, 4868)]