321005440

素因数分解:

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

素因数の和:1012

約数の個数: 128

約数和(自身を含む): 889113600

約数和(自身を除く): 568108160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 79, 80, 112, 128, 140, 158, 160, 224, 280, 316, 320, 395, 448, 553, 560, 632, 640, 790, 896, 907, 1106, 1120, 1264, 1580, 1814, 2212, 2240, 2528, 2765, 3160, 3628, 4424, 4480, 4535, 5056, 5530, 6320, 6349, 7256, 8848, 9070, 10112, 11060, 12640, 12698, 14512, 17696, 18140, 22120, 25280, 25396, 29024, 31745, 35392, 36280, 44240, 50560, 50792, 58048, 63490, 70784, 71653, 72560, 88480, 101584, 116096, 126980, 143306, 145120, 176960, 203168, 253960, 286612, 290240, 353920, 358265, 406336, 501571, 507920, 573224, 580480, 716530, 812672, 1003142, 1015840, 1146448, 1433060, 2006284, 2031680, 2292896, 2507855, 2866120, 4012568, 4063360, 4585792, 5015710, 5732240, 8025136, 9171584, 10031420, 11464480, 16050272, 20062840, 22928960, 32100544, 40125680, 45857920, 64201088, 80251360, 160502720, 321005440]

約数ペア:

[(1, 321005440), (2, 160502720), (4, 80251360), (5, 64201088), (7, 45857920), (8, 40125680), (10, 32100544), (14, 22928960), (16, 20062840), (20, 16050272), (28, 11464480), (32, 10031420), (35, 9171584), (40, 8025136), (56, 5732240), (64, 5015710), (70, 4585792), (79, 4063360), (80, 4012568), (112, 2866120), (128, 2507855), (140, 2292896), (158, 2031680), (160, 2006284), (224, 1433060), (280, 1146448), (316, 1015840), (320, 1003142), (395, 812672), (448, 716530), (553, 580480), (560, 573224), (632, 507920), (640, 501571), (790, 406336), (896, 358265), (907, 353920), (1106, 290240), (1120, 286612), (1264, 253960), (1580, 203168), (1814, 176960), (2212, 145120), (2240, 143306), (2528, 126980), (2765, 116096), (3160, 101584), (3628, 88480), (4424, 72560), (4480, 71653), (4535, 70784), (5056, 63490), (5530, 58048), (6320, 50792), (6349, 50560), (7256, 44240), (8848, 36280), (9070, 35392), (10112, 31745), (11060, 29024), (12640, 25396), (12698, 25280), (14512, 22120), (17696, 18140)]