664962076

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{2657}}^1$

素因数の和:2806

約数の個数: 48

約数和(自身を含む): 1272650400

約数和(自身を除く): 607688324

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 89, 148, 178, 356, 703, 1406, 1691, 2657, 2812, 3293, 3382, 5314, 6586, 6764, 10628, 13172, 50483, 62567, 98309, 100966, 125134, 196618, 201932, 236473, 250268, 393236, 472946, 945892, 1867871, 3735742, 4492987, 7471484, 8749501, 8985974, 17499002, 17971948, 34998004, 166240519, 332481038, 664962076]

約数ペア:

[(1, 664962076), (2, 332481038), (4, 166240519), (19, 34998004), (37, 17971948), (38, 17499002), (74, 8985974), (76, 8749501), (89, 7471484), (148, 4492987), (178, 3735742), (356, 1867871), (703, 945892), (1406, 472946), (1691, 393236), (2657, 250268), (2812, 236473), (3293, 201932), (3382, 196618), (5314, 125134), (6586, 100966), (6764, 98309), (10628, 62567), (13172, 50483)]