179920520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20353}}^1$

素因数の和:20394

約数の個数: 64

約数和(自身を含む): 461628720

約数和(自身を除く): 281708200

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 4420, 8840, 20353, 40706, 81412, 101765, 162824, 203530, 264589, 346001, 407060, 529178, 692002, 814120, 1058356, 1322945, 1384004, 1730005, 2116712, 2645890, 2768008, 3460010, 4498013, 5291780, 6920020, 8996026, 10583560, 13840040, 17992052, 22490065, 35984104, 44980130, 89960260, 179920520]

約数ペア:

[(1, 179920520), (2, 89960260), (4, 44980130), (5, 35984104), (8, 22490065), (10, 17992052), (13, 13840040), (17, 10583560), (20, 8996026), (26, 6920020), (34, 5291780), (40, 4498013), (52, 3460010), (65, 2768008), (68, 2645890), (85, 2116712), (104, 1730005), (130, 1384004), (136, 1322945), (170, 1058356), (221, 814120), (260, 692002), (340, 529178), (442, 407060), (520, 346001), (680, 264589), (884, 203530), (1105, 162824), (1768, 101765), (2210, 81412), (4420, 40706), (8840, 20353)]