254380972020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{605668981}}^1$

素因数の和:605669000

約数の個数: 48

約数和(自身を含む): 814019111808

約数和(自身を除く): 559638139788

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, 605668981, 1211337962, 1817006943, 2422675924, 3028344905, 3634013886, 4239682867, 6056689810, 7268027772, 8479365734, 9085034715, 12113379620, 12719048601, 16958731468, 18170069430, 21198414335, 25438097202, 36340138860, 42396828670, 50876194404, 63595243005, 84793657340, 127190486010, 254380972020]

約数ペア:

[(1, 254380972020), (2, 127190486010), (3, 84793657340), (4, 63595243005), (5, 50876194404), (6, 42396828670), (7, 36340138860), (10, 25438097202), (12, 21198414335), (14, 18170069430), (15, 16958731468), (20, 12719048601), (21, 12113379620), (28, 9085034715), (30, 8479365734), (35, 7268027772), (42, 6056689810), (60, 4239682867), (70, 3634013886), (84, 3028344905), (105, 2422675924), (140, 1817006943), (210, 1211337962), (420, 605668981)]