20286656

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{659}}^1$

素因数の和:721

約数の個数: 56

約数和(自身を含む): 44592240

約数和(自身を除く): 24305584

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 37, 52, 64, 74, 104, 148, 208, 296, 416, 481, 592, 659, 832, 962, 1184, 1318, 1924, 2368, 2636, 3848, 5272, 7696, 8567, 10544, 15392, 17134, 21088, 24383, 30784, 34268, 42176, 48766, 68536, 97532, 137072, 195064, 274144, 316979, 390128, 548288, 633958, 780256, 1267916, 1560512, 2535832, 5071664, 10143328, 20286656]

約数ペア:

[(1, 20286656), (2, 10143328), (4, 5071664), (8, 2535832), (13, 1560512), (16, 1267916), (26, 780256), (32, 633958), (37, 548288), (52, 390128), (64, 316979), (74, 274144), (104, 195064), (148, 137072), (208, 97532), (296, 68536), (416, 48766), (481, 42176), (592, 34268), (659, 30784), (832, 24383), (962, 21088), (1184, 17134), (1318, 15392), (1924, 10544), (2368, 8567), (2636, 7696), (3848, 5272)]