19515000

素因数分解:

$2^3\times 3^1\times 5^4\times {\mathrm{1301}}^1$

素因数の和:1330

約数の個数: 80

約数和(自身を含む): 61011720

約数和(自身を除く): 41496720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 300, 375, 500, 600, 625, 750, 1000, 1250, 1301, 1500, 1875, 2500, 2602, 3000, 3750, 3903, 5000, 5204, 6505, 7500, 7806, 10408, 13010, 15000, 15612, 19515, 26020, 31224, 32525, 39030, 52040, 65050, 78060, 97575, 130100, 156120, 162625, 195150, 260200, 325250, 390300, 487875, 650500, 780600, 813125, 975750, 1301000, 1626250, 1951500, 2439375, 3252500, 3903000, 4878750, 6505000, 9757500, 19515000]

約数ペア:

[(1, 19515000), (2, 9757500), (3, 6505000), (4, 4878750), (5, 3903000), (6, 3252500), (8, 2439375), (10, 1951500), (12, 1626250), (15, 1301000), (20, 975750), (24, 813125), (25, 780600), (30, 650500), (40, 487875), (50, 390300), (60, 325250), (75, 260200), (100, 195150), (120, 162625), (125, 156120), (150, 130100), (200, 97575), (250, 78060), (300, 65050), (375, 52040), (500, 39030), (600, 32525), (625, 31224), (750, 26020), (1000, 19515), (1250, 15612), (1301, 15000), (1500, 13010), (1875, 10408), (2500, 7806), (2602, 7500), (3000, 6505), (3750, 5204), (3903, 5000)]