289340520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{344453}}^1$

素因数の和:344474

約数の個数: 64

約数和(自身を含む): 992027520

約数和(自身を除く): 702687000

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, 344453, 688906, 1033359, 1377812, 1722265, 2066718, 2411171, 2755624, 3444530, 4133436, 4822342, 5166795, 6889060, 7233513, 8266872, 9644684, 10333590, 12055855, 13778120, 14467026, 19289368, 20667180, 24111710, 28934052, 36167565, 41334360, 48223420, 57868104, 72335130, 96446840, 144670260, 289340520]

約数ペア:

[(1, 289340520), (2, 144670260), (3, 96446840), (4, 72335130), (5, 57868104), (6, 48223420), (7, 41334360), (8, 36167565), (10, 28934052), (12, 24111710), (14, 20667180), (15, 19289368), (20, 14467026), (21, 13778120), (24, 12055855), (28, 10333590), (30, 9644684), (35, 8266872), (40, 7233513), (42, 6889060), (56, 5166795), (60, 4822342), (70, 4133436), (84, 3444530), (105, 2755624), (120, 2411171), (140, 2066718), (168, 1722265), (210, 1377812), (280, 1033359), (420, 688906), (840, 344453)]