155771728

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1031}}^1$

素因数の和:1136

約数の個数: 80

約数和(自身を含む): 368547840

約数和(自身を除く): 212776112

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 71, 76, 112, 133, 142, 152, 266, 284, 304, 497, 532, 568, 994, 1031, 1064, 1136, 1349, 1988, 2062, 2128, 2698, 3976, 4124, 5396, 7217, 7952, 8248, 9443, 10792, 14434, 16496, 18886, 19589, 21584, 28868, 37772, 39178, 57736, 73201, 75544, 78356, 115472, 137123, 146402, 151088, 156712, 274246, 292804, 313424, 512407, 548492, 585608, 1024814, 1096984, 1171216, 1390819, 2049628, 2193968, 2781638, 4099256, 5563276, 8198512, 9735733, 11126552, 19471466, 22253104, 38942932, 77885864, 155771728]

約数ペア:

[(1, 155771728), (2, 77885864), (4, 38942932), (7, 22253104), (8, 19471466), (14, 11126552), (16, 9735733), (19, 8198512), (28, 5563276), (38, 4099256), (56, 2781638), (71, 2193968), (76, 2049628), (112, 1390819), (133, 1171216), (142, 1096984), (152, 1024814), (266, 585608), (284, 548492), (304, 512407), (497, 313424), (532, 292804), (568, 274246), (994, 156712), (1031, 151088), (1064, 146402), (1136, 137123), (1349, 115472), (1988, 78356), (2062, 75544), (2128, 73201), (2698, 57736), (3976, 39178), (4124, 37772), (5396, 28868), (7217, 21584), (7952, 19589), (8248, 18886), (9443, 16496), (10792, 14434)]