2840220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:555

約数の個数: 72

約数和(自身を含む): 8910720

約数和(自身を除く): 6070500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 509, 558, 620, 930, 1018, 1116, 1395, 1527, 1860, 2036, 2545, 2790, 3054, 4581, 5090, 5580, 6108, 7635, 9162, 10180, 15270, 15779, 18324, 22905, 30540, 31558, 45810, 47337, 63116, 78895, 91620, 94674, 142011, 157790, 189348, 236685, 284022, 315580, 473370, 568044, 710055, 946740, 1420110, 2840220]

約数ペア:

[(1, 2840220), (2, 1420110), (3, 946740), (4, 710055), (5, 568044), (6, 473370), (9, 315580), (10, 284022), (12, 236685), (15, 189348), (18, 157790), (20, 142011), (30, 94674), (31, 91620), (36, 78895), (45, 63116), (60, 47337), (62, 45810), (90, 31558), (93, 30540), (124, 22905), (155, 18324), (180, 15779), (186, 15270), (279, 10180), (310, 9162), (372, 7635), (465, 6108), (509, 5580), (558, 5090), (620, 4581), (930, 3054), (1018, 2790), (1116, 2545), (1395, 2036), (1527, 1860)]