156404480

素因数分解:

$2^8\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1721}}^1$

素因数の和:1813

約数の個数: 72

約数和(自身を含む): 380134944

約数和(自身を除く): 223730464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 256, 284, 320, 355, 568, 640, 710, 1136, 1280, 1420, 1721, 2272, 2840, 3442, 4544, 5680, 6884, 8605, 9088, 11360, 13768, 17210, 18176, 22720, 27536, 34420, 45440, 55072, 68840, 90880, 110144, 122191, 137680, 220288, 244382, 275360, 440576, 488764, 550720, 610955, 977528, 1101440, 1221910, 1955056, 2202880, 2443820, 3910112, 4887640, 7820224, 9775280, 15640448, 19550560, 31280896, 39101120, 78202240, 156404480]

約数ペア:

[(1, 156404480), (2, 78202240), (4, 39101120), (5, 31280896), (8, 19550560), (10, 15640448), (16, 9775280), (20, 7820224), (32, 4887640), (40, 3910112), (64, 2443820), (71, 2202880), (80, 1955056), (128, 1221910), (142, 1101440), (160, 977528), (256, 610955), (284, 550720), (320, 488764), (355, 440576), (568, 275360), (640, 244382), (710, 220288), (1136, 137680), (1280, 122191), (1420, 110144), (1721, 90880), (2272, 68840), (2840, 55072), (3442, 45440), (4544, 34420), (5680, 27536), (6884, 22720), (8605, 18176), (9088, 17210), (11360, 13768)]