205188980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1381}}^1$

素因数の和:1449

約数の個数: 96

約数和(自身を含む): 501500160

約数和(自身を除く): 296311180

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 23, 34, 38, 46, 68, 76, 85, 92, 95, 115, 170, 190, 230, 323, 340, 380, 391, 437, 460, 646, 782, 874, 1292, 1381, 1564, 1615, 1748, 1955, 2185, 2762, 3230, 3910, 4370, 5524, 6460, 6905, 7429, 7820, 8740, 13810, 14858, 23477, 26239, 27620, 29716, 31763, 37145, 46954, 52478, 63526, 74290, 93908, 104956, 117385, 127052, 131195, 148580, 158815, 234770, 262390, 317630, 446063, 469540, 524780, 539971, 603497, 635260, 892126, 1079942, 1206994, 1784252, 2159884, 2230315, 2413988, 2699855, 3017485, 4460630, 5399710, 6034970, 8921260, 10259449, 10799420, 12069940, 20518898, 41037796, 51297245, 102594490, 205188980]

約数ペア:

[(1, 205188980), (2, 102594490), (4, 51297245), (5, 41037796), (10, 20518898), (17, 12069940), (19, 10799420), (20, 10259449), (23, 8921260), (34, 6034970), (38, 5399710), (46, 4460630), (68, 3017485), (76, 2699855), (85, 2413988), (92, 2230315), (95, 2159884), (115, 1784252), (170, 1206994), (190, 1079942), (230, 892126), (323, 635260), (340, 603497), (380, 539971), (391, 524780), (437, 469540), (460, 446063), (646, 317630), (782, 262390), (874, 234770), (1292, 158815), (1381, 148580), (1564, 131195), (1615, 127052), (1748, 117385), (1955, 104956), (2185, 93908), (2762, 74290), (3230, 63526), (3910, 52478), (4370, 46954), (5524, 37145), (6460, 31763), (6905, 29716), (7429, 27620), (7820, 26239), (8740, 23477), (13810, 14858)]