280879760

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{907}}^1$

素因数の和:1013

約数の個数: 120

約数和(自身を含む): 770129280

約数和(自身を除く): 489249520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 79, 80, 98, 112, 140, 158, 196, 245, 280, 316, 392, 395, 490, 553, 560, 632, 784, 790, 907, 980, 1106, 1264, 1580, 1814, 1960, 2212, 2765, 3160, 3628, 3871, 3920, 4424, 4535, 5530, 6320, 6349, 7256, 7742, 8848, 9070, 11060, 12698, 14512, 15484, 18140, 19355, 22120, 25396, 30968, 31745, 36280, 38710, 44240, 44443, 50792, 61936, 63490, 71653, 72560, 77420, 88886, 101584, 126980, 143306, 154840, 177772, 222215, 253960, 286612, 309680, 355544, 358265, 444430, 501571, 507920, 573224, 711088, 716530, 888860, 1003142, 1146448, 1433060, 1777720, 2006284, 2507855, 2866120, 3510997, 3555440, 4012568, 5015710, 5732240, 7021994, 8025136, 10031420, 14043988, 17554985, 20062840, 28087976, 35109970, 40125680, 56175952, 70219940, 140439880, 280879760]

約数ペア:

[(1, 280879760), (2, 140439880), (4, 70219940), (5, 56175952), (7, 40125680), (8, 35109970), (10, 28087976), (14, 20062840), (16, 17554985), (20, 14043988), (28, 10031420), (35, 8025136), (40, 7021994), (49, 5732240), (56, 5015710), (70, 4012568), (79, 3555440), (80, 3510997), (98, 2866120), (112, 2507855), (140, 2006284), (158, 1777720), (196, 1433060), (245, 1146448), (280, 1003142), (316, 888860), (392, 716530), (395, 711088), (490, 573224), (553, 507920), (560, 501571), (632, 444430), (784, 358265), (790, 355544), (907, 309680), (980, 286612), (1106, 253960), (1264, 222215), (1580, 177772), (1814, 154840), (1960, 143306), (2212, 126980), (2765, 101584), (3160, 88886), (3628, 77420), (3871, 72560), (3920, 71653), (4424, 63490), (4535, 61936), (5530, 50792), (6320, 44443), (6349, 44240), (7256, 38710), (7742, 36280), (8848, 31745), (9070, 30968), (11060, 25396), (12698, 22120), (14512, 19355), (15484, 18140)]