18727740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{439}}^1$

素因数の和:536

約数の個数: 96

約数和(自身を含む): 59136000

約数和(自身を除く): 40408260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 79, 90, 108, 135, 158, 180, 237, 270, 316, 395, 439, 474, 540, 711, 790, 878, 948, 1185, 1317, 1422, 1580, 1756, 2133, 2195, 2370, 2634, 2844, 3555, 3951, 4266, 4390, 4740, 5268, 6585, 7110, 7902, 8532, 8780, 10665, 11853, 13170, 14220, 15804, 19755, 21330, 23706, 26340, 34681, 39510, 42660, 47412, 59265, 69362, 79020, 104043, 118530, 138724, 173405, 208086, 237060, 312129, 346810, 416172, 520215, 624258, 693620, 936387, 1040430, 1248516, 1560645, 1872774, 2080860, 3121290, 3745548, 4681935, 6242580, 9363870, 18727740]

約数ペア:

[(1, 18727740), (2, 9363870), (3, 6242580), (4, 4681935), (5, 3745548), (6, 3121290), (9, 2080860), (10, 1872774), (12, 1560645), (15, 1248516), (18, 1040430), (20, 936387), (27, 693620), (30, 624258), (36, 520215), (45, 416172), (54, 346810), (60, 312129), (79, 237060), (90, 208086), (108, 173405), (135, 138724), (158, 118530), (180, 104043), (237, 79020), (270, 69362), (316, 59265), (395, 47412), (439, 42660), (474, 39510), (540, 34681), (711, 26340), (790, 23706), (878, 21330), (948, 19755), (1185, 15804), (1317, 14220), (1422, 13170), (1580, 11853), (1756, 10665), (2133, 8780), (2195, 8532), (2370, 7902), (2634, 7110), (2844, 6585), (3555, 5268), (3951, 4740), (4266, 4390)]