644352904

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{4391}}^1$

素因数の和:4510

約数の個数: 64

約数和(自身を含む): 1394547840

約数和(自身を除く): 750194936

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 83, 104, 136, 166, 221, 332, 442, 664, 884, 1079, 1411, 1768, 2158, 2822, 4316, 4391, 5644, 8632, 8782, 11288, 17564, 18343, 35128, 36686, 57083, 73372, 74647, 114166, 146744, 149294, 228332, 298588, 364453, 456664, 597176, 728906, 970411, 1457812, 1940822, 2915624, 3881644, 4737889, 6195701, 7763288, 9475778, 12391402, 18951556, 24782804, 37903112, 49565608, 80544113, 161088226, 322176452, 644352904]

約数ペア:

[(1, 644352904), (2, 322176452), (4, 161088226), (8, 80544113), (13, 49565608), (17, 37903112), (26, 24782804), (34, 18951556), (52, 12391402), (68, 9475778), (83, 7763288), (104, 6195701), (136, 4737889), (166, 3881644), (221, 2915624), (332, 1940822), (442, 1457812), (664, 970411), (884, 728906), (1079, 597176), (1411, 456664), (1768, 364453), (2158, 298588), (2822, 228332), (4316, 149294), (4391, 146744), (5644, 114166), (8632, 74647), (8782, 73372), (11288, 57083), (17564, 36686), (18343, 35128)]