28213760

素因数分解:

$2^9\times 5^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:233

約数の個数: 80

約数和(自身を含む): 68942016

約数和(自身を除く): 40728256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 107, 128, 160, 206, 214, 256, 320, 412, 428, 512, 515, 535, 640, 824, 856, 1030, 1070, 1280, 1648, 1712, 2060, 2140, 2560, 3296, 3424, 4120, 4280, 6592, 6848, 8240, 8560, 11021, 13184, 13696, 16480, 17120, 22042, 26368, 27392, 32960, 34240, 44084, 52736, 54784, 55105, 65920, 68480, 88168, 110210, 131840, 136960, 176336, 220420, 263680, 273920, 352672, 440840, 705344, 881680, 1410688, 1763360, 2821376, 3526720, 5642752, 7053440, 14106880, 28213760]

約数ペア:

[(1, 28213760), (2, 14106880), (4, 7053440), (5, 5642752), (8, 3526720), (10, 2821376), (16, 1763360), (20, 1410688), (32, 881680), (40, 705344), (64, 440840), (80, 352672), (103, 273920), (107, 263680), (128, 220420), (160, 176336), (206, 136960), (214, 131840), (256, 110210), (320, 88168), (412, 68480), (428, 65920), (512, 55105), (515, 54784), (535, 52736), (640, 44084), (824, 34240), (856, 32960), (1030, 27392), (1070, 26368), (1280, 22042), (1648, 17120), (1712, 16480), (2060, 13696), (2140, 13184), (2560, 11021), (3296, 8560), (3424, 8240), (4120, 6848), (4280, 6592)]