209854680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{249827}}^1$

素因数の和:249848

約数の個数: 64

約数和(自身を含む): 719504640

約数和(自身を除く): 509649960

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, 249827, 499654, 749481, 999308, 1249135, 1498962, 1748789, 1998616, 2498270, 2997924, 3497578, 3747405, 4996540, 5246367, 5995848, 6995156, 7494810, 8743945, 9993080, 10492734, 13990312, 14989620, 17487890, 20985468, 26231835, 29979240, 34975780, 41970936, 52463670, 69951560, 104927340, 209854680]

約数ペア:

[(1, 209854680), (2, 104927340), (3, 69951560), (4, 52463670), (5, 41970936), (6, 34975780), (7, 29979240), (8, 26231835), (10, 20985468), (12, 17487890), (14, 14989620), (15, 13990312), (20, 10492734), (21, 9993080), (24, 8743945), (28, 7494810), (30, 6995156), (35, 5995848), (40, 5246367), (42, 4996540), (56, 3747405), (60, 3497578), (70, 2997924), (84, 2498270), (105, 1998616), (120, 1748789), (140, 1498962), (168, 1249135), (210, 999308), (280, 749481), (420, 499654), (840, 249827)]