128981552

素因数分解:

$2^4\times 7^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:354

約数の個数: 80

約数和(自身を含む): 294624000

約数和(自身を除く): 165642448

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 59, 112, 118, 131, 149, 236, 262, 298, 413, 472, 524, 596, 826, 917, 944, 1043, 1048, 1192, 1652, 1834, 2086, 2096, 2384, 3304, 3668, 4172, 6608, 7336, 7729, 8344, 8791, 14672, 15458, 16688, 17582, 19519, 30916, 35164, 39038, 54103, 61537, 61832, 70328, 78076, 108206, 123074, 123664, 136633, 140656, 156152, 216412, 246148, 273266, 312304, 432824, 492296, 546532, 865648, 984592, 1093064, 1151621, 2186128, 2303242, 4606484, 8061347, 9212968, 16122694, 18425936, 32245388, 64490776, 128981552]

約数ペア:

[(1, 128981552), (2, 64490776), (4, 32245388), (7, 18425936), (8, 16122694), (14, 9212968), (16, 8061347), (28, 4606484), (56, 2303242), (59, 2186128), (112, 1151621), (118, 1093064), (131, 984592), (149, 865648), (236, 546532), (262, 492296), (298, 432824), (413, 312304), (472, 273266), (524, 246148), (596, 216412), (826, 156152), (917, 140656), (944, 136633), (1043, 123664), (1048, 123074), (1192, 108206), (1652, 78076), (1834, 70328), (2086, 61832), (2096, 61537), (2384, 54103), (3304, 39038), (3668, 35164), (4172, 30916), (6608, 19519), (7336, 17582), (7729, 16688), (8344, 15458), (8791, 14672)]