81382500

素因数分解:

$2^2\times 3^2\times 5^4\times {\mathrm{3617}}^1$

素因数の和:3647

約数の個数: 90

約数和(自身を含む): 257134878

約数和(自身を除く): 175752378

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 625, 750, 900, 1125, 1250, 1500, 1875, 2250, 2500, 3617, 3750, 4500, 5625, 7234, 7500, 10851, 11250, 14468, 18085, 21702, 22500, 32553, 36170, 43404, 54255, 65106, 72340, 90425, 108510, 130212, 162765, 180850, 217020, 271275, 325530, 361700, 452125, 542550, 651060, 813825, 904250, 1085100, 1356375, 1627650, 1808500, 2260625, 2712750, 3255300, 4069125, 4521250, 5425500, 6781875, 8138250, 9042500, 13563750, 16276500, 20345625, 27127500, 40691250, 81382500]

約数ペア:

[(1, 81382500), (2, 40691250), (3, 27127500), (4, 20345625), (5, 16276500), (6, 13563750), (9, 9042500), (10, 8138250), (12, 6781875), (15, 5425500), (18, 4521250), (20, 4069125), (25, 3255300), (30, 2712750), (36, 2260625), (45, 1808500), (50, 1627650), (60, 1356375), (75, 1085100), (90, 904250), (100, 813825), (125, 651060), (150, 542550), (180, 452125), (225, 361700), (250, 325530), (300, 271275), (375, 217020), (450, 180850), (500, 162765), (625, 130212), (750, 108510), (900, 90425), (1125, 72340), (1250, 65106), (1500, 54255), (1875, 43404), (2250, 36170), (2500, 32553), (3617, 22500), (3750, 21702), (4500, 18085), (5625, 14468), (7234, 11250), (7500, 10851)]