253892480

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:308

約数の個数: 128

約数和(自身を含む): 639221760

約数和(自身を除く): 385329280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 67, 80, 124, 128, 134, 155, 160, 191, 248, 268, 310, 320, 335, 382, 496, 536, 620, 640, 670, 764, 955, 992, 1072, 1240, 1340, 1528, 1910, 1984, 2077, 2144, 2480, 2680, 3056, 3820, 3968, 4154, 4288, 4960, 5360, 5921, 6112, 7640, 8308, 8576, 9920, 10385, 10720, 11842, 12224, 12797, 15280, 16616, 19840, 20770, 21440, 23684, 24448, 25594, 29605, 30560, 33232, 41540, 42880, 47368, 51188, 59210, 61120, 63985, 66464, 83080, 94736, 102376, 118420, 122240, 127970, 132928, 166160, 189472, 204752, 236840, 255940, 265856, 332320, 378944, 396707, 409504, 473680, 511880, 664640, 757888, 793414, 819008, 947360, 1023760, 1329280, 1586828, 1638016, 1894720, 1983535, 2047520, 3173656, 3789440, 3967070, 4095040, 6347312, 7934140, 8190080, 12694624, 15868280, 25389248, 31736560, 50778496, 63473120, 126946240, 253892480]

約数ペア:

[(1, 253892480), (2, 126946240), (4, 63473120), (5, 50778496), (8, 31736560), (10, 25389248), (16, 15868280), (20, 12694624), (31, 8190080), (32, 7934140), (40, 6347312), (62, 4095040), (64, 3967070), (67, 3789440), (80, 3173656), (124, 2047520), (128, 1983535), (134, 1894720), (155, 1638016), (160, 1586828), (191, 1329280), (248, 1023760), (268, 947360), (310, 819008), (320, 793414), (335, 757888), (382, 664640), (496, 511880), (536, 473680), (620, 409504), (640, 396707), (670, 378944), (764, 332320), (955, 265856), (992, 255940), (1072, 236840), (1240, 204752), (1340, 189472), (1528, 166160), (1910, 132928), (1984, 127970), (2077, 122240), (2144, 118420), (2480, 102376), (2680, 94736), (3056, 83080), (3820, 66464), (3968, 63985), (4154, 61120), (4288, 59210), (4960, 51188), (5360, 47368), (5921, 42880), (6112, 41540), (7640, 33232), (8308, 30560), (8576, 29605), (9920, 25594), (10385, 24448), (10720, 23684), (11842, 21440), (12224, 20770), (12797, 19840), (15280, 16616)]