81903640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{22501}}^1$

素因数の和:22532

約数の個数: 64

約数和(自身を含む): 226820160

約数和(自身を除く): 144916520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 22501, 45002, 90004, 112505, 157507, 180008, 225010, 292513, 315014, 450020, 585026, 630028, 787535, 900040, 1170052, 1260056, 1462565, 1575070, 2047591, 2340104, 2925130, 3150140, 4095182, 5850260, 6300280, 8190364, 10237955, 11700520, 16380728, 20475910, 40951820, 81903640]

約数ペア:

[(1, 81903640), (2, 40951820), (4, 20475910), (5, 16380728), (7, 11700520), (8, 10237955), (10, 8190364), (13, 6300280), (14, 5850260), (20, 4095182), (26, 3150140), (28, 2925130), (35, 2340104), (40, 2047591), (52, 1575070), (56, 1462565), (65, 1260056), (70, 1170052), (91, 900040), (104, 787535), (130, 630028), (140, 585026), (182, 450020), (260, 315014), (280, 292513), (364, 225010), (455, 180008), (520, 157507), (728, 112505), (910, 90004), (1820, 45002), (3640, 22501)]