20200500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{67}}^2$

素因数の和:159

約数の個数: 108

約数和(自身を含む): 64691172

約数和(自身を除く): 44490672

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 67, 75, 90, 100, 125, 134, 150, 180, 201, 225, 250, 268, 300, 335, 375, 402, 450, 500, 603, 670, 750, 804, 900, 1005, 1125, 1206, 1340, 1500, 1675, 2010, 2250, 2412, 3015, 3350, 4020, 4489, 4500, 5025, 6030, 6700, 8375, 8978, 10050, 12060, 13467, 15075, 16750, 17956, 20100, 22445, 25125, 26934, 30150, 33500, 40401, 44890, 50250, 53868, 60300, 67335, 75375, 80802, 89780, 100500, 112225, 134670, 150750, 161604, 202005, 224450, 269340, 301500, 336675, 404010, 448900, 561125, 673350, 808020, 1010025, 1122250, 1346700, 1683375, 2020050, 2244500, 3366750, 4040100, 5050125, 6733500, 10100250, 20200500]

約数ペア:

[(1, 20200500), (2, 10100250), (3, 6733500), (4, 5050125), (5, 4040100), (6, 3366750), (9, 2244500), (10, 2020050), (12, 1683375), (15, 1346700), (18, 1122250), (20, 1010025), (25, 808020), (30, 673350), (36, 561125), (45, 448900), (50, 404010), (60, 336675), (67, 301500), (75, 269340), (90, 224450), (100, 202005), (125, 161604), (134, 150750), (150, 134670), (180, 112225), (201, 100500), (225, 89780), (250, 80802), (268, 75375), (300, 67335), (335, 60300), (375, 53868), (402, 50250), (450, 44890), (500, 40401), (603, 33500), (670, 30150), (750, 26934), (804, 25125), (900, 22445), (1005, 20100), (1125, 17956), (1206, 16750), (1340, 15075), (1500, 13467), (1675, 12060), (2010, 10050), (2250, 8978), (2412, 8375), (3015, 6700), (3350, 6030), (4020, 5025), (4489, 4500)]