20886320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1$

素因数の和:203

約数の個数: 160

約数和(自身を含む): 63329280

約数和(自身を除く): 42442960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 19, 20, 26, 28, 35, 38, 40, 52, 56, 65, 70, 76, 80, 91, 95, 104, 112, 130, 133, 140, 151, 152, 182, 190, 208, 247, 260, 266, 280, 302, 304, 364, 380, 455, 494, 520, 532, 560, 604, 665, 728, 755, 760, 910, 988, 1040, 1057, 1064, 1208, 1235, 1330, 1456, 1510, 1520, 1729, 1820, 1963, 1976, 2114, 2128, 2416, 2470, 2660, 2869, 3020, 3458, 3640, 3926, 3952, 4228, 4940, 5285, 5320, 5738, 6040, 6916, 7280, 7852, 8456, 8645, 9815, 9880, 10570, 10640, 11476, 12080, 13741, 13832, 14345, 15704, 16912, 17290, 19630, 19760, 20083, 21140, 22952, 27482, 27664, 28690, 31408, 34580, 37297, 39260, 40166, 42280, 45904, 54964, 57380, 68705, 69160, 74594, 78520, 80332, 84560, 100415, 109928, 114760, 137410, 138320, 149188, 157040, 160664, 186485, 200830, 219856, 229520, 261079, 274820, 298376, 321328, 372970, 401660, 522158, 549640, 596752, 745940, 803320, 1044316, 1099280, 1305395, 1491880, 1606640, 2088632, 2610790, 2983760, 4177264, 5221580, 10443160, 20886320]

約数ペア:

[(1, 20886320), (2, 10443160), (4, 5221580), (5, 4177264), (7, 2983760), (8, 2610790), (10, 2088632), (13, 1606640), (14, 1491880), (16, 1305395), (19, 1099280), (20, 1044316), (26, 803320), (28, 745940), (35, 596752), (38, 549640), (40, 522158), (52, 401660), (56, 372970), (65, 321328), (70, 298376), (76, 274820), (80, 261079), (91, 229520), (95, 219856), (104, 200830), (112, 186485), (130, 160664), (133, 157040), (140, 149188), (151, 138320), (152, 137410), (182, 114760), (190, 109928), (208, 100415), (247, 84560), (260, 80332), (266, 78520), (280, 74594), (302, 69160), (304, 68705), (364, 57380), (380, 54964), (455, 45904), (494, 42280), (520, 40166), (532, 39260), (560, 37297), (604, 34580), (665, 31408), (728, 28690), (755, 27664), (760, 27482), (910, 22952), (988, 21140), (1040, 20083), (1057, 19760), (1064, 19630), (1208, 17290), (1235, 16912), (1330, 15704), (1456, 14345), (1510, 13832), (1520, 13741), (1729, 12080), (1820, 11476), (1963, 10640), (1976, 10570), (2114, 9880), (2128, 9815), (2416, 8645), (2470, 8456), (2660, 7852), (2869, 7280), (3020, 6916), (3458, 6040), (3640, 5738), (3926, 5320), (3952, 5285), (4228, 4940)]