265498880

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6691}}^1$

素因数の和:6743

約数の個数: 72

約数和(自身を含む): 656565504

約数和(自身を除く): 391066624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 6691, 7936, 9920, 13382, 19840, 26764, 33455, 39680, 53528, 66910, 107056, 133820, 207421, 214112, 267640, 414842, 428224, 535280, 829684, 856448, 1037105, 1070560, 1659368, 1712896, 2074210, 2141120, 3318736, 4148420, 4282240, 6637472, 8296840, 8564480, 13274944, 16593680, 26549888, 33187360, 53099776, 66374720, 132749440, 265498880]

約数ペア:

[(1, 265498880), (2, 132749440), (4, 66374720), (5, 53099776), (8, 33187360), (10, 26549888), (16, 16593680), (20, 13274944), (31, 8564480), (32, 8296840), (40, 6637472), (62, 4282240), (64, 4148420), (80, 3318736), (124, 2141120), (128, 2074210), (155, 1712896), (160, 1659368), (248, 1070560), (256, 1037105), (310, 856448), (320, 829684), (496, 535280), (620, 428224), (640, 414842), (992, 267640), (1240, 214112), (1280, 207421), (1984, 133820), (2480, 107056), (3968, 66910), (4960, 53528), (6691, 39680), (7936, 33455), (9920, 26764), (13382, 19840)]