81815220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26737}}^1$

素因数の和:26769

約数の個数: 72

約数和(自身を含む): 262781064

約数和(自身を除く): 180965844

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 26737, 53474, 80211, 106948, 133685, 160422, 240633, 267370, 320844, 401055, 454529, 481266, 534740, 802110, 909058, 962532, 1203165, 1363587, 1604220, 1818116, 2272645, 2406330, 2727174, 4090761, 4545290, 4812660, 5454348, 6817935, 8181522, 9090580, 13635870, 16363044, 20453805, 27271740, 40907610, 81815220]

約数ペア:

[(1, 81815220), (2, 40907610), (3, 27271740), (4, 20453805), (5, 16363044), (6, 13635870), (9, 9090580), (10, 8181522), (12, 6817935), (15, 5454348), (17, 4812660), (18, 4545290), (20, 4090761), (30, 2727174), (34, 2406330), (36, 2272645), (45, 1818116), (51, 1604220), (60, 1363587), (68, 1203165), (85, 962532), (90, 909058), (102, 802110), (153, 534740), (170, 481266), (180, 454529), (204, 401055), (255, 320844), (306, 267370), (340, 240633), (510, 160422), (612, 133685), (765, 106948), (1020, 80211), (1530, 53474), (3060, 26737)]