81958020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4229}}^1$

素因数の和:4277

約数の個数: 96

約数和(自身を含む): 255830400

約数和(自身を除く): 173872380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 19, 20, 30, 34, 38, 51, 57, 60, 68, 76, 85, 95, 102, 114, 170, 190, 204, 228, 255, 285, 323, 340, 380, 510, 570, 646, 969, 1020, 1140, 1292, 1615, 1938, 3230, 3876, 4229, 4845, 6460, 8458, 9690, 12687, 16916, 19380, 21145, 25374, 42290, 50748, 63435, 71893, 80351, 84580, 126870, 143786, 160702, 215679, 241053, 253740, 287572, 321404, 359465, 401755, 431358, 482106, 718930, 803510, 862716, 964212, 1078395, 1205265, 1365967, 1437860, 1607020, 2156790, 2410530, 2731934, 4097901, 4313580, 4821060, 5463868, 6829835, 8195802, 13659670, 16391604, 20489505, 27319340, 40979010, 81958020]

約数ペア:

[(1, 81958020), (2, 40979010), (3, 27319340), (4, 20489505), (5, 16391604), (6, 13659670), (10, 8195802), (12, 6829835), (15, 5463868), (17, 4821060), (19, 4313580), (20, 4097901), (30, 2731934), (34, 2410530), (38, 2156790), (51, 1607020), (57, 1437860), (60, 1365967), (68, 1205265), (76, 1078395), (85, 964212), (95, 862716), (102, 803510), (114, 718930), (170, 482106), (190, 431358), (204, 401755), (228, 359465), (255, 321404), (285, 287572), (323, 253740), (340, 241053), (380, 215679), (510, 160702), (570, 143786), (646, 126870), (969, 84580), (1020, 80351), (1140, 71893), (1292, 63435), (1615, 50748), (1938, 42290), (3230, 25374), (3876, 21145), (4229, 19380), (4845, 16916), (6460, 12687), (8458, 9690)]