18585320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{347}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 45601920

約数和(自身を除く): 27016600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 103, 104, 130, 206, 260, 347, 412, 515, 520, 694, 824, 1030, 1339, 1388, 1735, 2060, 2678, 2776, 3470, 4120, 4511, 5356, 6695, 6940, 9022, 10712, 13390, 13880, 18044, 22555, 26780, 35741, 36088, 45110, 53560, 71482, 90220, 142964, 178705, 180440, 285928, 357410, 464633, 714820, 929266, 1429640, 1858532, 2323165, 3717064, 4646330, 9292660, 18585320]

約数ペア:

[(1, 18585320), (2, 9292660), (4, 4646330), (5, 3717064), (8, 2323165), (10, 1858532), (13, 1429640), (20, 929266), (26, 714820), (40, 464633), (52, 357410), (65, 285928), (103, 180440), (104, 178705), (130, 142964), (206, 90220), (260, 71482), (347, 53560), (412, 45110), (515, 36088), (520, 35741), (694, 26780), (824, 22555), (1030, 18044), (1339, 13880), (1388, 13390), (1735, 10712), (2060, 9022), (2678, 6940), (2776, 6695), (3470, 5356), (4120, 4511)]