19521664

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{349}}^1$

素因数の和:405

約数の個数: 64

約数和(自身を含む): 42840000

約数和(自身を除く): 23318336

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 46, 64, 76, 92, 128, 152, 184, 304, 349, 368, 437, 608, 698, 736, 874, 1216, 1396, 1472, 1748, 2432, 2792, 2944, 3496, 5584, 6631, 6992, 8027, 11168, 13262, 13984, 16054, 22336, 26524, 27968, 32108, 44672, 53048, 55936, 64216, 106096, 128432, 152513, 212192, 256864, 305026, 424384, 513728, 610052, 848768, 1027456, 1220104, 2440208, 4880416, 9760832, 19521664]

約数ペア:

[(1, 19521664), (2, 9760832), (4, 4880416), (8, 2440208), (16, 1220104), (19, 1027456), (23, 848768), (32, 610052), (38, 513728), (46, 424384), (64, 305026), (76, 256864), (92, 212192), (128, 152513), (152, 128432), (184, 106096), (304, 64216), (349, 55936), (368, 53048), (437, 44672), (608, 32108), (698, 27968), (736, 26524), (874, 22336), (1216, 16054), (1396, 13984), (1472, 13262), (1748, 11168), (2432, 8027), (2792, 6992), (2944, 6631), (3496, 5584)]