280168240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:419

約数の個数: 120

約数和(自身を含む): 725516064

約数和(自身を除く): 445347824

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 103, 110, 121, 176, 206, 220, 242, 281, 412, 440, 484, 515, 562, 605, 824, 880, 968, 1030, 1124, 1133, 1210, 1405, 1648, 1936, 2060, 2248, 2266, 2420, 2810, 3091, 4120, 4496, 4532, 4840, 5620, 5665, 6182, 8240, 9064, 9680, 11240, 11330, 12364, 12463, 15455, 18128, 22480, 22660, 24728, 24926, 28943, 30910, 34001, 45320, 49456, 49852, 57886, 61820, 62315, 68002, 90640, 99704, 115772, 123640, 124630, 136004, 144715, 170005, 199408, 231544, 247280, 249260, 272008, 289430, 318373, 340010, 463088, 498520, 544016, 578860, 636746, 680020, 997040, 1157720, 1273492, 1360040, 1591865, 2315440, 2546984, 2720080, 3183730, 3502103, 5093968, 6367460, 7004206, 12734920, 14008412, 17510515, 25469840, 28016824, 35021030, 56033648, 70042060, 140084120, 280168240]

約数ペア:

[(1, 280168240), (2, 140084120), (4, 70042060), (5, 56033648), (8, 35021030), (10, 28016824), (11, 25469840), (16, 17510515), (20, 14008412), (22, 12734920), (40, 7004206), (44, 6367460), (55, 5093968), (80, 3502103), (88, 3183730), (103, 2720080), (110, 2546984), (121, 2315440), (176, 1591865), (206, 1360040), (220, 1273492), (242, 1157720), (281, 997040), (412, 680020), (440, 636746), (484, 578860), (515, 544016), (562, 498520), (605, 463088), (824, 340010), (880, 318373), (968, 289430), (1030, 272008), (1124, 249260), (1133, 247280), (1210, 231544), (1405, 199408), (1648, 170005), (1936, 144715), (2060, 136004), (2248, 124630), (2266, 123640), (2420, 115772), (2810, 99704), (3091, 90640), (4120, 68002), (4496, 62315), (4532, 61820), (4840, 57886), (5620, 49852), (5665, 49456), (6182, 45320), (8240, 34001), (9064, 30910), (9680, 28943), (11240, 24926), (11330, 24728), (12364, 22660), (12463, 22480), (15455, 18128)]