280456260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{667753}}^1$

素因数の和:667772

約数の個数: 48

約数和(自身を含む): 897461376

約数和(自身を除く): 617005116

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 667753, 1335506, 2003259, 2671012, 3338765, 4006518, 4674271, 6677530, 8013036, 9348542, 10016295, 13355060, 14022813, 18697084, 20032590, 23371355, 28045626, 40065180, 46742710, 56091252, 70114065, 93485420, 140228130, 280456260]

約数ペア:

[(1, 280456260), (2, 140228130), (3, 93485420), (4, 70114065), (5, 56091252), (6, 46742710), (7, 40065180), (10, 28045626), (12, 23371355), (14, 20032590), (15, 18697084), (20, 14022813), (21, 13355060), (28, 10016295), (30, 9348542), (35, 8013036), (42, 6677530), (60, 4674271), (70, 4006518), (84, 3338765), (105, 2671012), (140, 2003259), (210, 1335506), (420, 667753)]