217872356

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1\times {\mathrm{263}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 419126400

約数和(自身を除く): 201254044

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 179, 263, 356, 358, 526, 716, 1052, 1157, 2314, 2327, 3419, 4628, 4654, 6838, 9308, 13676, 15931, 23407, 31862, 46814, 47077, 63724, 93628, 94154, 188308, 207103, 304291, 414206, 608582, 612001, 828412, 1217164, 1224002, 2448004, 4189853, 8379706, 16759412, 54468089, 108936178, 217872356]

約数ペア:

[(1, 217872356), (2, 108936178), (4, 54468089), (13, 16759412), (26, 8379706), (52, 4189853), (89, 2448004), (178, 1224002), (179, 1217164), (263, 828412), (356, 612001), (358, 608582), (526, 414206), (716, 304291), (1052, 207103), (1157, 188308), (2314, 94154), (2327, 93628), (3419, 63724), (4628, 47077), (4654, 46814), (6838, 31862), (9308, 23407), (13676, 15931)]