20397079040

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{769}}^1\times {\mathrm{797}}^1$

素因数の和:1602

約数の個数: 160

約数和(自身を含む): 52801776720

約数和(自身を除く): 32404697680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 512, 520, 640, 769, 797, 832, 1040, 1280, 1538, 1594, 1664, 2080, 2560, 3076, 3188, 3328, 3845, 3985, 4160, 6152, 6376, 6656, 7690, 7970, 8320, 9997, 10361, 12304, 12752, 15380, 15940, 16640, 19994, 20722, 24608, 25504, 30760, 31880, 33280, 39988, 41444, 49216, 49985, 51008, 51805, 61520, 63760, 79976, 82888, 98432, 99970, 102016, 103610, 123040, 127520, 159952, 165776, 196864, 199940, 204032, 207220, 246080, 255040, 319904, 331552, 393728, 399880, 408064, 414440, 492160, 510080, 612893, 639808, 663104, 799760, 828880, 984320, 1020160, 1225786, 1279616, 1326208, 1599520, 1657760, 1968640, 2040320, 2451572, 2559232, 2652416, 3064465, 3199040, 3315520, 4903144, 5118464, 5304832, 6128930, 6398080, 6631040, 7967609, 9806288, 12257860, 12796160, 13262080, 15935218, 19612576, 24515720, 25592320, 26524160, 31870436, 39225152, 39838045, 49031440, 63740872, 78450304, 79676090, 98062880, 127481744, 156900608, 159352180, 196125760, 254963488, 313801216, 318704360, 392251520, 509926976, 637408720, 784503040, 1019853952, 1274817440, 1569006080, 2039707904, 2549634880, 4079415808, 5099269760, 10198539520, 20397079040]

約数ペア:

[(1, 20397079040), (2, 10198539520), (4, 5099269760), (5, 4079415808), (8, 2549634880), (10, 2039707904), (13, 1569006080), (16, 1274817440), (20, 1019853952), (26, 784503040), (32, 637408720), (40, 509926976), (52, 392251520), (64, 318704360), (65, 313801216), (80, 254963488), (104, 196125760), (128, 159352180), (130, 156900608), (160, 127481744), (208, 98062880), (256, 79676090), (260, 78450304), (320, 63740872), (416, 49031440), (512, 39838045), (520, 39225152), (640, 31870436), (769, 26524160), (797, 25592320), (832, 24515720), (1040, 19612576), (1280, 15935218), (1538, 13262080), (1594, 12796160), (1664, 12257860), (2080, 9806288), (2560, 7967609), (3076, 6631040), (3188, 6398080), (3328, 6128930), (3845, 5304832), (3985, 5118464), (4160, 4903144), (6152, 3315520), (6376, 3199040), (6656, 3064465), (7690, 2652416), (7970, 2559232), (8320, 2451572), (9997, 2040320), (10361, 1968640), (12304, 1657760), (12752, 1599520), (15380, 1326208), (15940, 1279616), (16640, 1225786), (19994, 1020160), (20722, 984320), (24608, 828880), (25504, 799760), (30760, 663104), (31880, 639808), (33280, 612893), (39988, 510080), (41444, 492160), (49216, 414440), (49985, 408064), (51008, 399880), (51805, 393728), (61520, 331552), (63760, 319904), (79976, 255040), (82888, 246080), (98432, 207220), (99970, 204032), (102016, 199940), (103610, 196864), (123040, 165776), (127520, 159952)]