13721720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1187}}^1$

素因数の和:1232

約数の個数: 48

約数和(自身を含む): 32824440

約数和(自身を除く): 19102720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 1156, 1187, 1445, 2312, 2374, 2890, 4748, 5780, 5935, 9496, 11560, 11870, 20179, 23740, 40358, 47480, 80716, 100895, 161432, 201790, 343043, 403580, 686086, 807160, 1372172, 1715215, 2744344, 3430430, 6860860, 13721720]

約数ペア:

[(1, 13721720), (2, 6860860), (4, 3430430), (5, 2744344), (8, 1715215), (10, 1372172), (17, 807160), (20, 686086), (34, 403580), (40, 343043), (68, 201790), (85, 161432), (136, 100895), (170, 80716), (289, 47480), (340, 40358), (578, 23740), (680, 20179), (1156, 11870), (1187, 11560), (1445, 9496), (2312, 5935), (2374, 5780), (2890, 4748)]