90880000

素因数分解:

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

素因数の和:113

約数の個数: 120

約数和(自身を含む): 230270040

約数和(自身を除く): 139390040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 71, 80, 100, 125, 128, 142, 160, 200, 250, 256, 284, 320, 355, 400, 500, 512, 568, 625, 640, 710, 800, 1000, 1024, 1136, 1250, 1280, 1420, 1600, 1775, 2000, 2048, 2272, 2500, 2560, 2840, 3200, 3550, 4000, 4544, 5000, 5120, 5680, 6400, 7100, 8000, 8875, 9088, 10000, 10240, 11360, 12800, 14200, 16000, 17750, 18176, 20000, 22720, 25600, 28400, 32000, 35500, 36352, 40000, 44375, 45440, 51200, 56800, 64000, 71000, 72704, 80000, 88750, 90880, 113600, 128000, 142000, 145408, 160000, 177500, 181760, 227200, 256000, 284000, 320000, 355000, 363520, 454400, 568000, 640000, 710000, 727040, 908800, 1136000, 1280000, 1420000, 1817600, 2272000, 2840000, 3635200, 4544000, 5680000, 9088000, 11360000, 18176000, 22720000, 45440000, 90880000]

約数ペア:

[(1, 90880000), (2, 45440000), (4, 22720000), (5, 18176000), (8, 11360000), (10, 9088000), (16, 5680000), (20, 4544000), (25, 3635200), (32, 2840000), (40, 2272000), (50, 1817600), (64, 1420000), (71, 1280000), (80, 1136000), (100, 908800), (125, 727040), (128, 710000), (142, 640000), (160, 568000), (200, 454400), (250, 363520), (256, 355000), (284, 320000), (320, 284000), (355, 256000), (400, 227200), (500, 181760), (512, 177500), (568, 160000), (625, 145408), (640, 142000), (710, 128000), (800, 113600), (1000, 90880), (1024, 88750), (1136, 80000), (1250, 72704), (1280, 71000), (1420, 64000), (1600, 56800), (1775, 51200), (2000, 45440), (2048, 44375), (2272, 40000), (2500, 36352), (2560, 35500), (2840, 32000), (3200, 28400), (3550, 25600), (4000, 22720), (4544, 20000), (5000, 18176), (5120, 17750), (5680, 16000), (6400, 14200), (7100, 12800), (8000, 11360), (8875, 10240), (9088, 10000)]