16556980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 42456960

約数和(自身を除く): 25899980

約数列:

[1, 2, 4, 5, 10, 11, 17, 19, 20, 22, 34, 38, 44, 55, 68, 76, 85, 95, 110, 170, 187, 190, 209, 220, 233, 323, 340, 374, 380, 418, 466, 646, 748, 836, 932, 935, 1045, 1165, 1292, 1615, 1870, 2090, 2330, 2563, 3230, 3553, 3740, 3961, 4180, 4427, 4660, 5126, 6460, 7106, 7922, 8854, 10252, 12815, 14212, 15844, 17708, 17765, 19805, 22135, 25630, 35530, 39610, 43571, 44270, 48697, 51260, 71060, 75259, 79220, 87142, 88540, 97394, 150518, 174284, 194788, 217855, 243485, 301036, 376295, 435710, 486970, 752590, 827849, 871420, 973940, 1505180, 1655698, 3311396, 4139245, 8278490, 16556980]

約数ペア:

[(1, 16556980), (2, 8278490), (4, 4139245), (5, 3311396), (10, 1655698), (11, 1505180), (17, 973940), (19, 871420), (20, 827849), (22, 752590), (34, 486970), (38, 435710), (44, 376295), (55, 301036), (68, 243485), (76, 217855), (85, 194788), (95, 174284), (110, 150518), (170, 97394), (187, 88540), (190, 87142), (209, 79220), (220, 75259), (233, 71060), (323, 51260), (340, 48697), (374, 44270), (380, 43571), (418, 39610), (466, 35530), (646, 25630), (748, 22135), (836, 19805), (932, 17765), (935, 17708), (1045, 15844), (1165, 14212), (1292, 12815), (1615, 10252), (1870, 8854), (2090, 7922), (2330, 7106), (2563, 6460), (3230, 5126), (3553, 4660), (3740, 4427), (3961, 4180)]