71680920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:393

約数の個数: 128

約数和(自身を含む): 228960000

約数和(自身を除く): 157279080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 149, 152, 190, 211, 228, 285, 298, 380, 422, 447, 456, 570, 596, 633, 745, 760, 844, 894, 1055, 1140, 1192, 1266, 1490, 1688, 1788, 2110, 2235, 2280, 2532, 2831, 2980, 3165, 3576, 4009, 4220, 4470, 5064, 5662, 5960, 6330, 8018, 8440, 8493, 8940, 11324, 12027, 12660, 14155, 16036, 16986, 17880, 20045, 22648, 24054, 25320, 28310, 31439, 32072, 33972, 40090, 42465, 48108, 56620, 60135, 62878, 67944, 80180, 84930, 94317, 96216, 113240, 120270, 125756, 157195, 160360, 169860, 188634, 240540, 251512, 314390, 339720, 377268, 471585, 481080, 597341, 628780, 754536, 943170, 1194682, 1257560, 1792023, 1886340, 2389364, 2986705, 3584046, 3772680, 4778728, 5973410, 7168092, 8960115, 11946820, 14336184, 17920230, 23893640, 35840460, 71680920]

約数ペア:

[(1, 71680920), (2, 35840460), (3, 23893640), (4, 17920230), (5, 14336184), (6, 11946820), (8, 8960115), (10, 7168092), (12, 5973410), (15, 4778728), (19, 3772680), (20, 3584046), (24, 2986705), (30, 2389364), (38, 1886340), (40, 1792023), (57, 1257560), (60, 1194682), (76, 943170), (95, 754536), (114, 628780), (120, 597341), (149, 481080), (152, 471585), (190, 377268), (211, 339720), (228, 314390), (285, 251512), (298, 240540), (380, 188634), (422, 169860), (447, 160360), (456, 157195), (570, 125756), (596, 120270), (633, 113240), (745, 96216), (760, 94317), (844, 84930), (894, 80180), (1055, 67944), (1140, 62878), (1192, 60135), (1266, 56620), (1490, 48108), (1688, 42465), (1788, 40090), (2110, 33972), (2235, 32072), (2280, 31439), (2532, 28310), (2831, 25320), (2980, 24054), (3165, 22648), (3576, 20045), (4009, 17880), (4220, 16986), (4470, 16036), (5064, 14155), (5662, 12660), (5960, 12027), (6330, 11324), (8018, 8940), (8440, 8493)]