257397712

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:273

約数の個数: 160

約数和(自身を含む): 639959040

約数和(自身を除く): 382561328

約数列:

[1, 2, 4, 8, 11, 13, 16, 19, 22, 26, 31, 38, 44, 52, 62, 76, 88, 104, 124, 143, 152, 176, 191, 208, 209, 247, 248, 286, 304, 341, 382, 403, 418, 494, 496, 572, 589, 682, 764, 806, 836, 988, 1144, 1178, 1364, 1528, 1612, 1672, 1976, 2101, 2288, 2356, 2483, 2717, 2728, 3056, 3224, 3344, 3629, 3952, 4202, 4433, 4712, 4966, 5434, 5456, 5921, 6448, 6479, 7258, 7657, 8404, 8866, 9424, 9932, 10868, 11842, 12958, 14516, 15314, 16808, 17732, 19864, 21736, 23684, 25916, 27313, 29032, 30628, 33616, 35464, 39728, 39919, 43472, 47177, 47368, 51832, 54626, 58064, 61256, 65131, 70928, 76973, 79838, 84227, 94354, 94736, 103664, 109252, 112499, 122512, 130262, 153946, 159676, 168454, 188708, 218504, 224998, 260524, 307892, 319352, 336908, 377416, 437008, 449996, 518947, 521048, 615784, 638704, 673816, 754832, 846703, 899992, 1037894, 1042096, 1231568, 1237489, 1347632, 1462487, 1693406, 1799984, 2075788, 2474978, 2924974, 3386812, 4151576, 4949956, 5849948, 6773624, 8303152, 9899912, 11699896, 13547248, 16087357, 19799824, 23399792, 32174714, 64349428, 128698856, 257397712]

約数ペア:

[(1, 257397712), (2, 128698856), (4, 64349428), (8, 32174714), (11, 23399792), (13, 19799824), (16, 16087357), (19, 13547248), (22, 11699896), (26, 9899912), (31, 8303152), (38, 6773624), (44, 5849948), (52, 4949956), (62, 4151576), (76, 3386812), (88, 2924974), (104, 2474978), (124, 2075788), (143, 1799984), (152, 1693406), (176, 1462487), (191, 1347632), (208, 1237489), (209, 1231568), (247, 1042096), (248, 1037894), (286, 899992), (304, 846703), (341, 754832), (382, 673816), (403, 638704), (418, 615784), (494, 521048), (496, 518947), (572, 449996), (589, 437008), (682, 377416), (764, 336908), (806, 319352), (836, 307892), (988, 260524), (1144, 224998), (1178, 218504), (1364, 188708), (1528, 168454), (1612, 159676), (1672, 153946), (1976, 130262), (2101, 122512), (2288, 112499), (2356, 109252), (2483, 103664), (2717, 94736), (2728, 94354), (3056, 84227), (3224, 79838), (3344, 76973), (3629, 70928), (3952, 65131), (4202, 61256), (4433, 58064), (4712, 54626), (4966, 51832), (5434, 47368), (5456, 47177), (5921, 43472), (6448, 39919), (6479, 39728), (7258, 35464), (7657, 33616), (8404, 30628), (8866, 29032), (9424, 27313), (9932, 25916), (10868, 23684), (11842, 21736), (12958, 19864), (14516, 17732), (15314, 16808)]