78202240

素因数分解:

$2^7\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1721}}^1$

素因数の和:1811

約数の個数: 64

約数和(自身を含む): 189695520

約数和(自身を除く): 111493280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 284, 320, 355, 568, 640, 710, 1136, 1420, 1721, 2272, 2840, 3442, 4544, 5680, 6884, 8605, 9088, 11360, 13768, 17210, 22720, 27536, 34420, 45440, 55072, 68840, 110144, 122191, 137680, 220288, 244382, 275360, 488764, 550720, 610955, 977528, 1101440, 1221910, 1955056, 2443820, 3910112, 4887640, 7820224, 9775280, 15640448, 19550560, 39101120, 78202240]

約数ペア:

[(1, 78202240), (2, 39101120), (4, 19550560), (5, 15640448), (8, 9775280), (10, 7820224), (16, 4887640), (20, 3910112), (32, 2443820), (40, 1955056), (64, 1221910), (71, 1101440), (80, 977528), (128, 610955), (142, 550720), (160, 488764), (284, 275360), (320, 244382), (355, 220288), (568, 137680), (640, 122191), (710, 110144), (1136, 68840), (1420, 55072), (1721, 45440), (2272, 34420), (2840, 27536), (3442, 22720), (4544, 17210), (5680, 13768), (6884, 11360), (8605, 9088)]