21525000

素因数分解:

$2^3\times 3^1\times 5^5\times 7^1\times {\mathrm{41}}^1$

素因数の和:82

約数の個数: 192

約数和(自身を含む): 78744960

約数和(自身を除く): 57219960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 41, 42, 50, 56, 60, 70, 75, 82, 84, 100, 105, 120, 123, 125, 140, 150, 164, 168, 175, 200, 205, 210, 246, 250, 280, 287, 300, 328, 350, 375, 410, 420, 492, 500, 525, 574, 600, 615, 625, 700, 750, 820, 840, 861, 875, 984, 1000, 1025, 1050, 1148, 1230, 1250, 1400, 1435, 1500, 1640, 1722, 1750, 1875, 2050, 2100, 2296, 2460, 2500, 2625, 2870, 3000, 3075, 3125, 3444, 3500, 3750, 4100, 4200, 4305, 4375, 4920, 5000, 5125, 5250, 5740, 6150, 6250, 6888, 7000, 7175, 7500, 8200, 8610, 8750, 9375, 10250, 10500, 11480, 12300, 12500, 13125, 14350, 15000, 15375, 17220, 17500, 18750, 20500, 21000, 21525, 21875, 24600, 25000, 25625, 26250, 28700, 30750, 34440, 35000, 35875, 37500, 41000, 43050, 43750, 51250, 52500, 57400, 61500, 65625, 71750, 75000, 76875, 86100, 87500, 102500, 105000, 107625, 123000, 128125, 131250, 143500, 153750, 172200, 175000, 179375, 205000, 215250, 256250, 262500, 287000, 307500, 358750, 384375, 430500, 512500, 525000, 538125, 615000, 717500, 768750, 861000, 896875, 1025000, 1076250, 1435000, 1537500, 1793750, 2152500, 2690625, 3075000, 3587500, 4305000, 5381250, 7175000, 10762500, 21525000]

約数ペア:

[(1, 21525000), (2, 10762500), (3, 7175000), (4, 5381250), (5, 4305000), (6, 3587500), (7, 3075000), (8, 2690625), (10, 2152500), (12, 1793750), (14, 1537500), (15, 1435000), (20, 1076250), (21, 1025000), (24, 896875), (25, 861000), (28, 768750), (30, 717500), (35, 615000), (40, 538125), (41, 525000), (42, 512500), (50, 430500), (56, 384375), (60, 358750), (70, 307500), (75, 287000), (82, 262500), (84, 256250), (100, 215250), (105, 205000), (120, 179375), (123, 175000), (125, 172200), (140, 153750), (150, 143500), (164, 131250), (168, 128125), (175, 123000), (200, 107625), (205, 105000), (210, 102500), (246, 87500), (250, 86100), (280, 76875), (287, 75000), (300, 71750), (328, 65625), (350, 61500), (375, 57400), (410, 52500), (420, 51250), (492, 43750), (500, 43050), (525, 41000), (574, 37500), (600, 35875), (615, 35000), (625, 34440), (700, 30750), (750, 28700), (820, 26250), (840, 25625), (861, 25000), (875, 24600), (984, 21875), (1000, 21525), (1025, 21000), (1050, 20500), (1148, 18750), (1230, 17500), (1250, 17220), (1400, 15375), (1435, 15000), (1500, 14350), (1640, 13125), (1722, 12500), (1750, 12300), (1875, 11480), (2050, 10500), (2100, 10250), (2296, 9375), (2460, 8750), (2500, 8610), (2625, 8200), (2870, 7500), (3000, 7175), (3075, 7000), (3125, 6888), (3444, 6250), (3500, 6150), (3750, 5740), (4100, 5250), (4200, 5125), (4305, 5000), (4375, 4920)]