205800

素因数分解:

$2^3\times 3^1\times 5^2\times 7^3$

素因数の和:40

約数の個数: 96

約数和(自身を含む): 744000

約数和(自身を除く): 538200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 49, 50, 56, 60, 70, 75, 84, 98, 100, 105, 120, 140, 147, 150, 168, 175, 196, 200, 210, 245, 280, 294, 300, 343, 350, 392, 420, 490, 525, 588, 600, 686, 700, 735, 840, 980, 1029, 1050, 1176, 1225, 1372, 1400, 1470, 1715, 1960, 2058, 2100, 2450, 2744, 2940, 3430, 3675, 4116, 4200, 4900, 5145, 5880, 6860, 7350, 8232, 8575, 9800, 10290, 13720, 14700, 17150, 20580, 25725, 29400, 34300, 41160, 51450, 68600, 102900, 205800]

約数ペア:

[(1, 205800), (2, 102900), (3, 68600), (4, 51450), (5, 41160), (6, 34300), (7, 29400), (8, 25725), (10, 20580), (12, 17150), (14, 14700), (15, 13720), (20, 10290), (21, 9800), (24, 8575), (25, 8232), (28, 7350), (30, 6860), (35, 5880), (40, 5145), (42, 4900), (49, 4200), (50, 4116), (56, 3675), (60, 3430), (70, 2940), (75, 2744), (84, 2450), (98, 2100), (100, 2058), (105, 1960), (120, 1715), (140, 1470), (147, 1400), (150, 1372), (168, 1225), (175, 1176), (196, 1050), (200, 1029), (210, 980), (245, 840), (280, 735), (294, 700), (300, 686), (343, 600), (350, 588), (392, 525), (420, 490)]