51240720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{661}}^1$

素因数の和:713

約数の個数: 160

約数和(自身を含む): 177310080

約数和(自身を除く): 126069360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 19, 20, 24, 30, 34, 38, 40, 48, 51, 57, 60, 68, 76, 80, 85, 95, 102, 114, 120, 136, 152, 170, 190, 204, 228, 240, 255, 272, 285, 304, 323, 340, 380, 408, 456, 510, 570, 646, 661, 680, 760, 816, 912, 969, 1020, 1140, 1292, 1322, 1360, 1520, 1615, 1938, 1983, 2040, 2280, 2584, 2644, 3230, 3305, 3876, 3966, 4080, 4560, 4845, 5168, 5288, 6460, 6610, 7752, 7932, 9690, 9915, 10576, 11237, 12559, 12920, 13220, 15504, 15864, 19380, 19830, 22474, 25118, 25840, 26440, 31728, 33711, 37677, 38760, 39660, 44948, 50236, 52880, 56185, 62795, 67422, 75354, 77520, 79320, 89896, 100472, 112370, 125590, 134844, 150708, 158640, 168555, 179792, 188385, 200944, 213503, 224740, 251180, 269688, 301416, 337110, 376770, 427006, 449480, 502360, 539376, 602832, 640509, 674220, 753540, 854012, 898960, 1004720, 1067515, 1281018, 1348440, 1507080, 1708024, 2135030, 2562036, 2696880, 3014160, 3202545, 3416048, 4270060, 5124072, 6405090, 8540120, 10248144, 12810180, 17080240, 25620360, 51240720]

約数ペア:

[(1, 51240720), (2, 25620360), (3, 17080240), (4, 12810180), (5, 10248144), (6, 8540120), (8, 6405090), (10, 5124072), (12, 4270060), (15, 3416048), (16, 3202545), (17, 3014160), (19, 2696880), (20, 2562036), (24, 2135030), (30, 1708024), (34, 1507080), (38, 1348440), (40, 1281018), (48, 1067515), (51, 1004720), (57, 898960), (60, 854012), (68, 753540), (76, 674220), (80, 640509), (85, 602832), (95, 539376), (102, 502360), (114, 449480), (120, 427006), (136, 376770), (152, 337110), (170, 301416), (190, 269688), (204, 251180), (228, 224740), (240, 213503), (255, 200944), (272, 188385), (285, 179792), (304, 168555), (323, 158640), (340, 150708), (380, 134844), (408, 125590), (456, 112370), (510, 100472), (570, 89896), (646, 79320), (661, 77520), (680, 75354), (760, 67422), (816, 62795), (912, 56185), (969, 52880), (1020, 50236), (1140, 44948), (1292, 39660), (1322, 38760), (1360, 37677), (1520, 33711), (1615, 31728), (1938, 26440), (1983, 25840), (2040, 25118), (2280, 22474), (2584, 19830), (2644, 19380), (3230, 15864), (3305, 15504), (3876, 13220), (3966, 12920), (4080, 12559), (4560, 11237), (4845, 10576), (5168, 9915), (5288, 9690), (6460, 7932), (6610, 7752)]