81777976

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{509}}^1$

素因数の和:692

約数の個数: 64

約数和(自身を含む): 186048000

約数和(自身を除く): 104270024

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 151, 152, 266, 302, 509, 532, 604, 1018, 1057, 1064, 1208, 2036, 2114, 2869, 3563, 4072, 4228, 5738, 7126, 8456, 9671, 11476, 14252, 19342, 20083, 22952, 28504, 38684, 40166, 67697, 76859, 77368, 80332, 135394, 153718, 160664, 270788, 307436, 538013, 541576, 614872, 1076026, 1460321, 2152052, 2920642, 4304104, 5841284, 10222247, 11682568, 20444494, 40888988, 81777976]

約数ペア:

[(1, 81777976), (2, 40888988), (4, 20444494), (7, 11682568), (8, 10222247), (14, 5841284), (19, 4304104), (28, 2920642), (38, 2152052), (56, 1460321), (76, 1076026), (133, 614872), (151, 541576), (152, 538013), (266, 307436), (302, 270788), (509, 160664), (532, 153718), (604, 135394), (1018, 80332), (1057, 77368), (1064, 76859), (1208, 67697), (2036, 40166), (2114, 38684), (2869, 28504), (3563, 22952), (4072, 20083), (4228, 19342), (5738, 14252), (7126, 11476), (8456, 9671)]