387900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{431}}^1$

素因数の和:451

約数の個数: 54

約数和(自身を含む): 1218672

約数和(自身を除く): 830772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 431, 450, 862, 900, 1293, 1724, 2155, 2586, 3879, 4310, 5172, 6465, 7758, 8620, 10775, 12930, 15516, 19395, 21550, 25860, 32325, 38790, 43100, 64650, 77580, 96975, 129300, 193950, 387900]

約数ペア:

[(1, 387900), (2, 193950), (3, 129300), (4, 96975), (5, 77580), (6, 64650), (9, 43100), (10, 38790), (12, 32325), (15, 25860), (18, 21550), (20, 19395), (25, 15516), (30, 12930), (36, 10775), (45, 8620), (50, 7758), (60, 6465), (75, 5172), (90, 4310), (100, 3879), (150, 2586), (180, 2155), (225, 1724), (300, 1293), (431, 900), (450, 862)]