257179060

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{971}}^1$

素因数の和:1057

約数の個数: 96

約数和(自身を含む): 617258880

約数和(自身を除く): 360079820

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 41, 68, 76, 82, 85, 95, 164, 170, 190, 205, 323, 340, 380, 410, 646, 697, 779, 820, 971, 1292, 1394, 1558, 1615, 1942, 2788, 3116, 3230, 3485, 3884, 3895, 4855, 6460, 6970, 7790, 9710, 13243, 13940, 15580, 16507, 18449, 19420, 26486, 33014, 36898, 39811, 52972, 66028, 66215, 73796, 79622, 82535, 92245, 132430, 159244, 165070, 184490, 199055, 264860, 313633, 330140, 368980, 398110, 627266, 676787, 756409, 796220, 1254532, 1353574, 1512818, 1568165, 2707148, 3025636, 3136330, 3383935, 3782045, 6272660, 6767870, 7564090, 12858953, 13535740, 15128180, 25717906, 51435812, 64294765, 128589530, 257179060]

約数ペア:

[(1, 257179060), (2, 128589530), (4, 64294765), (5, 51435812), (10, 25717906), (17, 15128180), (19, 13535740), (20, 12858953), (34, 7564090), (38, 6767870), (41, 6272660), (68, 3782045), (76, 3383935), (82, 3136330), (85, 3025636), (95, 2707148), (164, 1568165), (170, 1512818), (190, 1353574), (205, 1254532), (323, 796220), (340, 756409), (380, 676787), (410, 627266), (646, 398110), (697, 368980), (779, 330140), (820, 313633), (971, 264860), (1292, 199055), (1394, 184490), (1558, 165070), (1615, 159244), (1942, 132430), (2788, 92245), (3116, 82535), (3230, 79622), (3485, 73796), (3884, 66215), (3895, 66028), (4855, 52972), (6460, 39811), (6970, 36898), (7790, 33014), (9710, 26486), (13243, 19420), (13940, 18449), (15580, 16507)]