20107500

素因数分解:

$2^2\times 3^1\times 5^4\times 7^1\times {\mathrm{383}}^1$

素因数の和:417

約数の個数: 120

約数和(自身を含む): 67178496

約数和(自身を除く): 47070996

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 125, 140, 150, 175, 210, 250, 300, 350, 375, 383, 420, 500, 525, 625, 700, 750, 766, 875, 1050, 1149, 1250, 1500, 1532, 1750, 1875, 1915, 2100, 2298, 2500, 2625, 2681, 3500, 3750, 3830, 4375, 4596, 5250, 5362, 5745, 7500, 7660, 8043, 8750, 9575, 10500, 10724, 11490, 13125, 13405, 16086, 17500, 19150, 22980, 26250, 26810, 28725, 32172, 38300, 40215, 47875, 52500, 53620, 57450, 67025, 80430, 95750, 114900, 134050, 143625, 160860, 191500, 201075, 239375, 268100, 287250, 335125, 402150, 478750, 574500, 670250, 718125, 804300, 957500, 1005375, 1340500, 1436250, 1675625, 2010750, 2872500, 3351250, 4021500, 5026875, 6702500, 10053750, 20107500]

約数ペア:

[(1, 20107500), (2, 10053750), (3, 6702500), (4, 5026875), (5, 4021500), (6, 3351250), (7, 2872500), (10, 2010750), (12, 1675625), (14, 1436250), (15, 1340500), (20, 1005375), (21, 957500), (25, 804300), (28, 718125), (30, 670250), (35, 574500), (42, 478750), (50, 402150), (60, 335125), (70, 287250), (75, 268100), (84, 239375), (100, 201075), (105, 191500), (125, 160860), (140, 143625), (150, 134050), (175, 114900), (210, 95750), (250, 80430), (300, 67025), (350, 57450), (375, 53620), (383, 52500), (420, 47875), (500, 40215), (525, 38300), (625, 32172), (700, 28725), (750, 26810), (766, 26250), (875, 22980), (1050, 19150), (1149, 17500), (1250, 16086), (1500, 13405), (1532, 13125), (1750, 11490), (1875, 10724), (1915, 10500), (2100, 9575), (2298, 8750), (2500, 8043), (2625, 7660), (2681, 7500), (3500, 5745), (3750, 5362), (3830, 5250), (4375, 4596)]