690635820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1644371}}^1$

素因数の和:1644390

約数の個数: 48

約数和(自身を含む): 2210035968

約数和(自身を除く): 1519400148

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, 1644371, 3288742, 4933113, 6577484, 8221855, 9866226, 11510597, 16443710, 19732452, 23021194, 24665565, 32887420, 34531791, 46042388, 49331130, 57552985, 69063582, 98662260, 115105970, 138127164, 172658955, 230211940, 345317910, 690635820]

約数ペア:

[(1, 690635820), (2, 345317910), (3, 230211940), (4, 172658955), (5, 138127164), (6, 115105970), (7, 98662260), (10, 69063582), (12, 57552985), (14, 49331130), (15, 46042388), (20, 34531791), (21, 32887420), (28, 24665565), (30, 23021194), (35, 19732452), (42, 16443710), (60, 11510597), (70, 9866226), (84, 8221855), (105, 6577484), (140, 4933113), (210, 3288742), (420, 1644371)]