205113720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4003}}^1$

素因数の和:4085

約数の個数: 128

約数和(自身を含む): 714954240

約数和(自身を除く): 509840520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 61, 70, 84, 105, 120, 122, 140, 168, 183, 210, 244, 280, 305, 366, 420, 427, 488, 610, 732, 840, 854, 915, 1220, 1281, 1464, 1708, 1830, 2135, 2440, 2562, 3416, 3660, 4003, 4270, 5124, 6405, 7320, 8006, 8540, 10248, 12009, 12810, 16012, 17080, 20015, 24018, 25620, 28021, 32024, 40030, 48036, 51240, 56042, 60045, 80060, 84063, 96072, 112084, 120090, 140105, 160120, 168126, 224168, 240180, 244183, 280210, 336252, 420315, 480360, 488366, 560420, 672504, 732549, 840630, 976732, 1120840, 1220915, 1465098, 1681260, 1709281, 1953464, 2441830, 2930196, 3362520, 3418562, 3662745, 4883660, 5127843, 5860392, 6837124, 7325490, 8546405, 9767320, 10255686, 13674248, 14650980, 17092810, 20511372, 25639215, 29301960, 34185620, 41022744, 51278430, 68371240, 102556860, 205113720]

約数ペア:

[(1, 205113720), (2, 102556860), (3, 68371240), (4, 51278430), (5, 41022744), (6, 34185620), (7, 29301960), (8, 25639215), (10, 20511372), (12, 17092810), (14, 14650980), (15, 13674248), (20, 10255686), (21, 9767320), (24, 8546405), (28, 7325490), (30, 6837124), (35, 5860392), (40, 5127843), (42, 4883660), (56, 3662745), (60, 3418562), (61, 3362520), (70, 2930196), (84, 2441830), (105, 1953464), (120, 1709281), (122, 1681260), (140, 1465098), (168, 1220915), (183, 1120840), (210, 976732), (244, 840630), (280, 732549), (305, 672504), (366, 560420), (420, 488366), (427, 480360), (488, 420315), (610, 336252), (732, 280210), (840, 244183), (854, 240180), (915, 224168), (1220, 168126), (1281, 160120), (1464, 140105), (1708, 120090), (1830, 112084), (2135, 96072), (2440, 84063), (2562, 80060), (3416, 60045), (3660, 56042), (4003, 51240), (4270, 48036), (5124, 40030), (6405, 32024), (7320, 28021), (8006, 25620), (8540, 24018), (10248, 20015), (12009, 17080), (12810, 16012)]