639313352320

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1427}}^1\times {\mathrm{8861}}^1$

素因数の和:10386

約数の個数: 128

約数和(自身を含む): 1548964166400

約数和(自身を除く): 909650814080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 316, 320, 395, 632, 640, 790, 1264, 1427, 1580, 2528, 2854, 3160, 5056, 5708, 6320, 7135, 8861, 10112, 11416, 12640, 14270, 17722, 22832, 25280, 28540, 35444, 44305, 45664, 50560, 57080, 70888, 88610, 91328, 112733, 114160, 141776, 177220, 182656, 225466, 228320, 283552, 354440, 450932, 456640, 563665, 567104, 700019, 708880, 901864, 913280, 1127330, 1134208, 1400038, 1417760, 1803728, 2254660, 2800076, 2835520, 3500095, 3607456, 4509320, 5600152, 5671040, 7000190, 7214912, 9018640, 11200304, 12644647, 14000380, 14429824, 18037280, 22400608, 25289294, 28000760, 36074560, 44801216, 50578588, 56001520, 63223235, 72149120, 89602432, 101157176, 112003040, 126446470, 202314352, 224006080, 252892940, 404628704, 448012160, 505785880, 809257408, 998927113, 1011571760, 1618514816, 1997854226, 2023143520, 3995708452, 4046287040, 4994635565, 7991416904, 8092574080, 9989271130, 15982833808, 19978542260, 31965667616, 39957084520, 63931335232, 79914169040, 127862670464, 159828338080, 319656676160, 639313352320]

約数ペア:

[(1, 639313352320), (2, 319656676160), (4, 159828338080), (5, 127862670464), (8, 79914169040), (10, 63931335232), (16, 39957084520), (20, 31965667616), (32, 19978542260), (40, 15982833808), (64, 9989271130), (79, 8092574080), (80, 7991416904), (128, 4994635565), (158, 4046287040), (160, 3995708452), (316, 2023143520), (320, 1997854226), (395, 1618514816), (632, 1011571760), (640, 998927113), (790, 809257408), (1264, 505785880), (1427, 448012160), (1580, 404628704), (2528, 252892940), (2854, 224006080), (3160, 202314352), (5056, 126446470), (5708, 112003040), (6320, 101157176), (7135, 89602432), (8861, 72149120), (10112, 63223235), (11416, 56001520), (12640, 50578588), (14270, 44801216), (17722, 36074560), (22832, 28000760), (25280, 25289294), (28540, 22400608), (35444, 18037280), (44305, 14429824), (45664, 14000380), (50560, 12644647), (57080, 11200304), (70888, 9018640), (88610, 7214912), (91328, 7000190), (112733, 5671040), (114160, 5600152), (141776, 4509320), (177220, 3607456), (182656, 3500095), (225466, 2835520), (228320, 2800076), (283552, 2254660), (354440, 1803728), (450932, 1417760), (456640, 1400038), (563665, 1134208), (567104, 1127330), (700019, 913280), (708880, 901864)]