28928240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{463}}^1$

素因数の和:558

約数の個数: 80

約数和(自身を含む): 74566656

約数和(自身を除く): 45638416

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 463, 568, 710, 781, 880, 926, 1136, 1420, 1562, 1852, 2315, 2840, 3124, 3704, 3905, 4630, 5093, 5680, 6248, 7408, 7810, 9260, 10186, 12496, 15620, 18520, 20372, 25465, 31240, 32873, 37040, 40744, 50930, 62480, 65746, 81488, 101860, 131492, 164365, 203720, 262984, 328730, 361603, 407440, 525968, 657460, 723206, 1314920, 1446412, 1808015, 2629840, 2892824, 3616030, 5785648, 7232060, 14464120, 28928240]

約数ペア:

[(1, 28928240), (2, 14464120), (4, 7232060), (5, 5785648), (8, 3616030), (10, 2892824), (11, 2629840), (16, 1808015), (20, 1446412), (22, 1314920), (40, 723206), (44, 657460), (55, 525968), (71, 407440), (80, 361603), (88, 328730), (110, 262984), (142, 203720), (176, 164365), (220, 131492), (284, 101860), (355, 81488), (440, 65746), (463, 62480), (568, 50930), (710, 40744), (781, 37040), (880, 32873), (926, 31240), (1136, 25465), (1420, 20372), (1562, 18520), (1852, 15620), (2315, 12496), (2840, 10186), (3124, 9260), (3704, 7810), (3905, 7408), (4630, 6248), (5093, 5680)]