19805700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{107}}^1\times {\mathrm{617}}^1$

素因数の和:741

約数の個数: 72

約数和(自身を含む): 57933792

約数和(自身を除く): 38128092

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 107, 150, 214, 300, 321, 428, 535, 617, 642, 1070, 1234, 1284, 1605, 1851, 2140, 2468, 2675, 3085, 3210, 3702, 5350, 6170, 6420, 7404, 8025, 9255, 10700, 12340, 15425, 16050, 18510, 30850, 32100, 37020, 46275, 61700, 66019, 92550, 132038, 185100, 198057, 264076, 330095, 396114, 660190, 792228, 990285, 1320380, 1650475, 1980570, 3300950, 3961140, 4951425, 6601900, 9902850, 19805700]

約数ペア:

[(1, 19805700), (2, 9902850), (3, 6601900), (4, 4951425), (5, 3961140), (6, 3300950), (10, 1980570), (12, 1650475), (15, 1320380), (20, 990285), (25, 792228), (30, 660190), (50, 396114), (60, 330095), (75, 264076), (100, 198057), (107, 185100), (150, 132038), (214, 92550), (300, 66019), (321, 61700), (428, 46275), (535, 37020), (617, 32100), (642, 30850), (1070, 18510), (1234, 16050), (1284, 15425), (1605, 12340), (1851, 10700), (2140, 9255), (2468, 8025), (2675, 7404), (3085, 6420), (3210, 6170), (3702, 5350)]