257308184

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1$

素因数の和:361

約数の個数: 128

約数和(自身を含む): 622080000

約数和(自身を除く): 364771816

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 29, 31, 38, 56, 58, 62, 76, 116, 124, 133, 152, 203, 217, 232, 248, 266, 269, 406, 434, 532, 538, 551, 589, 812, 868, 899, 1064, 1076, 1102, 1178, 1624, 1736, 1798, 1883, 2152, 2204, 2356, 3596, 3766, 3857, 4123, 4408, 4712, 5111, 6293, 7192, 7532, 7714, 7801, 8246, 8339, 10222, 12586, 15064, 15428, 15602, 16492, 16678, 17081, 20444, 25172, 30856, 31204, 32984, 33356, 34162, 35777, 40888, 50344, 54607, 58373, 62408, 66712, 68324, 71554, 109214, 116746, 119567, 136648, 143108, 148219, 158441, 218428, 233492, 239134, 241831, 286216, 296438, 316882, 436856, 466984, 478268, 483662, 592876, 633764, 956536, 967324, 1037533, 1109087, 1185752, 1267528, 1692817, 1934648, 2075066, 2218174, 3385634, 4150132, 4436348, 4594789, 6771268, 8300264, 8872696, 9189578, 13542536, 18379156, 32163523, 36758312, 64327046, 128654092, 257308184]

約数ペア:

[(1, 257308184), (2, 128654092), (4, 64327046), (7, 36758312), (8, 32163523), (14, 18379156), (19, 13542536), (28, 9189578), (29, 8872696), (31, 8300264), (38, 6771268), (56, 4594789), (58, 4436348), (62, 4150132), (76, 3385634), (116, 2218174), (124, 2075066), (133, 1934648), (152, 1692817), (203, 1267528), (217, 1185752), (232, 1109087), (248, 1037533), (266, 967324), (269, 956536), (406, 633764), (434, 592876), (532, 483662), (538, 478268), (551, 466984), (589, 436856), (812, 316882), (868, 296438), (899, 286216), (1064, 241831), (1076, 239134), (1102, 233492), (1178, 218428), (1624, 158441), (1736, 148219), (1798, 143108), (1883, 136648), (2152, 119567), (2204, 116746), (2356, 109214), (3596, 71554), (3766, 68324), (3857, 66712), (4123, 62408), (4408, 58373), (4712, 54607), (5111, 50344), (6293, 40888), (7192, 35777), (7532, 34162), (7714, 33356), (7801, 32984), (8246, 31204), (8339, 30856), (10222, 25172), (12586, 20444), (15064, 17081), (15428, 16678), (15602, 16492)]