205449720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{244583}}^1$

素因数の和:244604

約数の個数: 64

約数和(自身を含む): 704401920

約数和(自身を除く): 498952200

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, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 244583, 489166, 733749, 978332, 1222915, 1467498, 1712081, 1956664, 2445830, 2934996, 3424162, 3668745, 4891660, 5136243, 5869992, 6848324, 7337490, 8560405, 9783320, 10272486, 13696648, 14674980, 17120810, 20544972, 25681215, 29349960, 34241620, 41089944, 51362430, 68483240, 102724860, 205449720]

約数ペア:

[(1, 205449720), (2, 102724860), (3, 68483240), (4, 51362430), (5, 41089944), (6, 34241620), (7, 29349960), (8, 25681215), (10, 20544972), (12, 17120810), (14, 14674980), (15, 13696648), (20, 10272486), (21, 9783320), (24, 8560405), (28, 7337490), (30, 6848324), (35, 5869992), (40, 5136243), (42, 4891660), (56, 3668745), (60, 3424162), (70, 2934996), (84, 2445830), (105, 1956664), (120, 1712081), (140, 1467498), (168, 1222915), (210, 978332), (280, 733749), (420, 489166), (840, 244583)]