661256320

素因数分解:

$2^7\times 5^1\times {\mathrm{313}}^1\times {\mathrm{3301}}^1$

素因数の和:3633

約数の個数: 64

約数和(自身を含む): 1586346840

約数和(自身を除く): 925090520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 313, 320, 626, 640, 1252, 1565, 2504, 3130, 3301, 5008, 6260, 6602, 10016, 12520, 13204, 16505, 20032, 25040, 26408, 33010, 40064, 50080, 52816, 66020, 100160, 105632, 132040, 200320, 211264, 264080, 422528, 528160, 1033213, 1056320, 2066426, 2112640, 4132852, 5166065, 8265704, 10332130, 16531408, 20664260, 33062816, 41328520, 66125632, 82657040, 132251264, 165314080, 330628160, 661256320]

約数ペア:

[(1, 661256320), (2, 330628160), (4, 165314080), (5, 132251264), (8, 82657040), (10, 66125632), (16, 41328520), (20, 33062816), (32, 20664260), (40, 16531408), (64, 10332130), (80, 8265704), (128, 5166065), (160, 4132852), (313, 2112640), (320, 2066426), (626, 1056320), (640, 1033213), (1252, 528160), (1565, 422528), (2504, 264080), (3130, 211264), (3301, 200320), (5008, 132040), (6260, 105632), (6602, 100160), (10016, 66020), (12520, 52816), (13204, 50080), (16505, 40064), (20032, 33010), (25040, 26408)]