639363420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{15511}}^1$

素因数の和:15755

約数の個数: 72

約数和(自身を含む): 1947996960

約数和(自身を除く): 1308633540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 229, 458, 687, 916, 1145, 1374, 2061, 2290, 2748, 3435, 4122, 4580, 6870, 8244, 10305, 13740, 15511, 20610, 31022, 41220, 46533, 62044, 77555, 93066, 139599, 155110, 186132, 232665, 279198, 310220, 465330, 558396, 697995, 930660, 1395990, 2791980, 3552019, 7104038, 10656057, 14208076, 17760095, 21312114, 31968171, 35520190, 42624228, 53280285, 63936342, 71040380, 106560570, 127872684, 159840855, 213121140, 319681710, 639363420]

約数ペア:

[(1, 639363420), (2, 319681710), (3, 213121140), (4, 159840855), (5, 127872684), (6, 106560570), (9, 71040380), (10, 63936342), (12, 53280285), (15, 42624228), (18, 35520190), (20, 31968171), (30, 21312114), (36, 17760095), (45, 14208076), (60, 10656057), (90, 7104038), (180, 3552019), (229, 2791980), (458, 1395990), (687, 930660), (916, 697995), (1145, 558396), (1374, 465330), (2061, 310220), (2290, 279198), (2748, 232665), (3435, 186132), (4122, 155110), (4580, 139599), (6870, 93066), (8244, 77555), (10305, 62044), (13740, 46533), (15511, 41220), (20610, 31022)]