640626000

素因数分解:

$2^4\times 3^1\times 5^3\times 7^2\times {\mathrm{2179}}^1$

素因数の和:2219

約数の個数: 240

約数和(自身を含む): 2403685440

約数和(自身を除く): 1763059440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 49, 50, 56, 60, 70, 75, 80, 84, 98, 100, 105, 112, 120, 125, 140, 147, 150, 168, 175, 196, 200, 210, 240, 245, 250, 280, 294, 300, 336, 350, 375, 392, 400, 420, 490, 500, 525, 560, 588, 600, 700, 735, 750, 784, 840, 875, 980, 1000, 1050, 1176, 1200, 1225, 1400, 1470, 1500, 1680, 1750, 1960, 2000, 2100, 2179, 2352, 2450, 2625, 2800, 2940, 3000, 3500, 3675, 3920, 4200, 4358, 4900, 5250, 5880, 6000, 6125, 6537, 7000, 7350, 8400, 8716, 9800, 10500, 10895, 11760, 12250, 13074, 14000, 14700, 15253, 17432, 18375, 19600, 21000, 21790, 24500, 26148, 29400, 30506, 32685, 34864, 36750, 42000, 43580, 45759, 49000, 52296, 54475, 58800, 61012, 65370, 73500, 76265, 87160, 91518, 98000, 104592, 106771, 108950, 122024, 130740, 147000, 152530, 163425, 174320, 183036, 213542, 217900, 228795, 244048, 261480, 272375, 294000, 305060, 320313, 326850, 366072, 381325, 427084, 435800, 457590, 522960, 533855, 544750, 610120, 640626, 653700, 732144, 762650, 817125, 854168, 871600, 915180, 1067710, 1089500, 1143975, 1220240, 1281252, 1307400, 1525300, 1601565, 1634250, 1708336, 1830360, 1906625, 2135420, 2179000, 2287950, 2562504, 2614800, 2669275, 3050600, 3203130, 3268500, 3660720, 3813250, 4270840, 4358000, 4575900, 5125008, 5338550, 5719875, 6101200, 6406260, 6537000, 7626500, 8007825, 8541680, 9151800, 10677100, 11439750, 12812520, 13074000, 13346375, 15253000, 16015650, 18303600, 21354200, 22879500, 25625040, 26692750, 30506000, 32031300, 40039125, 42708400, 45759000, 53385500, 64062600, 80078250, 91518000, 106771000, 128125200, 160156500, 213542000, 320313000, 640626000]

約数ペア:

[(1, 640626000), (2, 320313000), (3, 213542000), (4, 160156500), (5, 128125200), (6, 106771000), (7, 91518000), (8, 80078250), (10, 64062600), (12, 53385500), (14, 45759000), (15, 42708400), (16, 40039125), (20, 32031300), (21, 30506000), (24, 26692750), (25, 25625040), (28, 22879500), (30, 21354200), (35, 18303600), (40, 16015650), (42, 15253000), (48, 13346375), (49, 13074000), (50, 12812520), (56, 11439750), (60, 10677100), (70, 9151800), (75, 8541680), (80, 8007825), (84, 7626500), (98, 6537000), (100, 6406260), (105, 6101200), (112, 5719875), (120, 5338550), (125, 5125008), (140, 4575900), (147, 4358000), (150, 4270840), (168, 3813250), (175, 3660720), (196, 3268500), (200, 3203130), (210, 3050600), (240, 2669275), (245, 2614800), (250, 2562504), (280, 2287950), (294, 2179000), (300, 2135420), (336, 1906625), (350, 1830360), (375, 1708336), (392, 1634250), (400, 1601565), (420, 1525300), (490, 1307400), (500, 1281252), (525, 1220240), (560, 1143975), (588, 1089500), (600, 1067710), (700, 915180), (735, 871600), (750, 854168), (784, 817125), (840, 762650), (875, 732144), (980, 653700), (1000, 640626), (1050, 610120), (1176, 544750), (1200, 533855), (1225, 522960), (1400, 457590), (1470, 435800), (1500, 427084), (1680, 381325), (1750, 366072), (1960, 326850), (2000, 320313), (2100, 305060), (2179, 294000), (2352, 272375), (2450, 261480), (2625, 244048), (2800, 228795), (2940, 217900), (3000, 213542), (3500, 183036), (3675, 174320), (3920, 163425), (4200, 152530), (4358, 147000), (4900, 130740), (5250, 122024), (5880, 108950), (6000, 106771), (6125, 104592), (6537, 98000), (7000, 91518), (7350, 87160), (8400, 76265), (8716, 73500), (9800, 65370), (10500, 61012), (10895, 58800), (11760, 54475), (12250, 52296), (13074, 49000), (14000, 45759), (14700, 43580), (15253, 42000), (17432, 36750), (18375, 34864), (19600, 32685), (21000, 30506), (21790, 29400), (24500, 26148)]