20711700

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{2557}}^1$

素因数の和:2583

約数の個数: 90

約数和(自身を含む): 67165406

約数和(自身を除く): 46453706

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 270, 300, 324, 405, 450, 540, 675, 810, 900, 1350, 1620, 2025, 2557, 2700, 4050, 5114, 7671, 8100, 10228, 12785, 15342, 23013, 25570, 30684, 38355, 46026, 51140, 63925, 69039, 76710, 92052, 115065, 127850, 138078, 153420, 191775, 207117, 230130, 255700, 276156, 345195, 383550, 414234, 460260, 575325, 690390, 767100, 828468, 1035585, 1150650, 1380780, 1725975, 2071170, 2301300, 3451950, 4142340, 5177925, 6903900, 10355850, 20711700]

約数ペア:

[(1, 20711700), (2, 10355850), (3, 6903900), (4, 5177925), (5, 4142340), (6, 3451950), (9, 2301300), (10, 2071170), (12, 1725975), (15, 1380780), (18, 1150650), (20, 1035585), (25, 828468), (27, 767100), (30, 690390), (36, 575325), (45, 460260), (50, 414234), (54, 383550), (60, 345195), (75, 276156), (81, 255700), (90, 230130), (100, 207117), (108, 191775), (135, 153420), (150, 138078), (162, 127850), (180, 115065), (225, 92052), (270, 76710), (300, 69039), (324, 63925), (405, 51140), (450, 46026), (540, 38355), (675, 30684), (810, 25570), (900, 23013), (1350, 15342), (1620, 12785), (2025, 10228), (2557, 8100), (2700, 7671), (4050, 5114)]