180517120

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{20147}}^1$

素因数の和:20175

約数の個数: 72

約数和(自身を含む): 494190144

約数和(自身を除く): 313673024

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 20147, 40294, 80588, 100735, 141029, 161176, 201470, 282058, 322352, 402940, 564116, 644704, 705145, 805880, 1128232, 1289408, 1410290, 1611760, 2256464, 2578816, 2820580, 3223520, 4512928, 5157632, 5641160, 6447040, 9025856, 11282320, 12894080, 18051712, 22564640, 25788160, 36103424, 45129280, 90258560, 180517120]

約数ペア:

[(1, 180517120), (2, 90258560), (4, 45129280), (5, 36103424), (7, 25788160), (8, 22564640), (10, 18051712), (14, 12894080), (16, 11282320), (20, 9025856), (28, 6447040), (32, 5641160), (35, 5157632), (40, 4512928), (56, 3223520), (64, 2820580), (70, 2578816), (80, 2256464), (112, 1611760), (128, 1410290), (140, 1289408), (160, 1128232), (224, 805880), (256, 705145), (280, 644704), (320, 564116), (448, 402940), (560, 322352), (640, 282058), (896, 201470), (1120, 161176), (1280, 141029), (1792, 100735), (2240, 80588), (4480, 40294), (8960, 20147)]