659983888

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{16493}}^1$

素因数の和:16603

約数の個数: 40

約数和(自身を含む): 1331461656

約数和(自身を除く): 671477768

約数列:

[1, 2, 4, 8, 16, 41, 61, 82, 122, 164, 244, 328, 488, 656, 976, 2501, 5002, 10004, 16493, 20008, 32986, 40016, 65972, 131944, 263888, 676213, 1006073, 1352426, 2012146, 2704852, 4024292, 5409704, 8048584, 10819408, 16097168, 41248993, 82497986, 164995972, 329991944, 659983888]

約数ペア:

[(1, 659983888), (2, 329991944), (4, 164995972), (8, 82497986), (16, 41248993), (41, 16097168), (61, 10819408), (82, 8048584), (122, 5409704), (164, 4024292), (244, 2704852), (328, 2012146), (488, 1352426), (656, 1006073), (976, 676213), (2501, 263888), (5002, 131944), (10004, 65972), (16493, 40016), (20008, 32986)]