19499040

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1231}}^1$

素因数の和:1263

約数の個数: 144

約数和(自身を含む): 72648576

約数和(自身を除く): 53149536

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 198, 220, 240, 264, 288, 330, 352, 360, 396, 440, 480, 495, 528, 660, 720, 792, 880, 990, 1056, 1231, 1320, 1440, 1584, 1760, 1980, 2462, 2640, 3168, 3693, 3960, 4924, 5280, 6155, 7386, 7920, 9848, 11079, 12310, 13541, 14772, 15840, 18465, 19696, 22158, 24620, 27082, 29544, 36930, 39392, 40623, 44316, 49240, 54164, 55395, 59088, 67705, 73860, 81246, 88632, 98480, 108328, 110790, 118176, 121869, 135410, 147720, 162492, 177264, 196960, 203115, 216656, 221580, 243738, 270820, 295440, 324984, 354528, 406230, 433312, 443160, 487476, 541640, 590880, 609345, 649968, 812460, 886320, 974952, 1083280, 1218690, 1299936, 1624920, 1772640, 1949904, 2166560, 2437380, 3249840, 3899808, 4874760, 6499680, 9749520, 19499040]

約数ペア:

[(1, 19499040), (2, 9749520), (3, 6499680), (4, 4874760), (5, 3899808), (6, 3249840), (8, 2437380), (9, 2166560), (10, 1949904), (11, 1772640), (12, 1624920), (15, 1299936), (16, 1218690), (18, 1083280), (20, 974952), (22, 886320), (24, 812460), (30, 649968), (32, 609345), (33, 590880), (36, 541640), (40, 487476), (44, 443160), (45, 433312), (48, 406230), (55, 354528), (60, 324984), (66, 295440), (72, 270820), (80, 243738), (88, 221580), (90, 216656), (96, 203115), (99, 196960), (110, 177264), (120, 162492), (132, 147720), (144, 135410), (160, 121869), (165, 118176), (176, 110790), (180, 108328), (198, 98480), (220, 88632), (240, 81246), (264, 73860), (288, 67705), (330, 59088), (352, 55395), (360, 54164), (396, 49240), (440, 44316), (480, 40623), (495, 39392), (528, 36930), (660, 29544), (720, 27082), (792, 24620), (880, 22158), (990, 19696), (1056, 18465), (1231, 15840), (1320, 14772), (1440, 13541), (1584, 12310), (1760, 11079), (1980, 9848), (2462, 7920), (2640, 7386), (3168, 6155), (3693, 5280), (3960, 4924)]