81078016

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:325

約数の個数: 72

約数和(自身を含む): 173331200

約数和(自身を除く): 92253184

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 79, 128, 152, 158, 211, 256, 304, 316, 422, 608, 632, 844, 1216, 1264, 1501, 1688, 2432, 2528, 3002, 3376, 4009, 4864, 5056, 6004, 6752, 8018, 10112, 12008, 13504, 16036, 16669, 20224, 24016, 27008, 32072, 33338, 48032, 54016, 64144, 66676, 96064, 128288, 133352, 192128, 256576, 266704, 316711, 384256, 513152, 533408, 633422, 1026304, 1066816, 1266844, 2133632, 2533688, 4267264, 5067376, 10134752, 20269504, 40539008, 81078016]

約数ペア:

[(1, 81078016), (2, 40539008), (4, 20269504), (8, 10134752), (16, 5067376), (19, 4267264), (32, 2533688), (38, 2133632), (64, 1266844), (76, 1066816), (79, 1026304), (128, 633422), (152, 533408), (158, 513152), (211, 384256), (256, 316711), (304, 266704), (316, 256576), (422, 192128), (608, 133352), (632, 128288), (844, 96064), (1216, 66676), (1264, 64144), (1501, 54016), (1688, 48032), (2432, 33338), (2528, 32072), (3002, 27008), (3376, 24016), (4009, 20224), (4864, 16669), (5056, 16036), (6004, 13504), (6752, 12008), (8018, 10112)]