16794940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{331}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 36812160

約数和(自身を除く): 20017220

約数列:

[1, 2, 4, 5, 10, 20, 43, 59, 86, 118, 172, 215, 236, 295, 331, 430, 590, 662, 860, 1180, 1324, 1655, 2537, 3310, 5074, 6620, 10148, 12685, 14233, 19529, 25370, 28466, 39058, 50740, 56932, 71165, 78116, 97645, 142330, 195290, 284660, 390580, 839747, 1679494, 3358988, 4198735, 8397470, 16794940]

約数ペア:

[(1, 16794940), (2, 8397470), (4, 4198735), (5, 3358988), (10, 1679494), (20, 839747), (43, 390580), (59, 284660), (86, 195290), (118, 142330), (172, 97645), (215, 78116), (236, 71165), (295, 56932), (331, 50740), (430, 39058), (590, 28466), (662, 25370), (860, 19529), (1180, 14233), (1324, 12685), (1655, 10148), (2537, 6620), (3310, 5074)]