20306788384

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{470413}}^1$

素因数の和:470513

約数の個数: 48

約数和(自身を含む): 42675958080

約数和(自身を除く): 22369169696

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 71, 76, 142, 152, 284, 304, 568, 608, 1136, 1349, 2272, 2698, 5396, 10792, 21584, 43168, 470413, 940826, 1881652, 3763304, 7526608, 8937847, 15053216, 17875694, 33399323, 35751388, 66798646, 71502776, 133597292, 143005552, 267194584, 286011104, 534389168, 634587137, 1068778336, 1269174274, 2538348548, 5076697096, 10153394192, 20306788384]

約数ペア:

[(1, 20306788384), (2, 10153394192), (4, 5076697096), (8, 2538348548), (16, 1269174274), (19, 1068778336), (32, 634587137), (38, 534389168), (71, 286011104), (76, 267194584), (142, 143005552), (152, 133597292), (284, 71502776), (304, 66798646), (568, 35751388), (608, 33399323), (1136, 17875694), (1349, 15053216), (2272, 8937847), (2698, 7526608), (5396, 3763304), (10792, 1881652), (21584, 940826), (43168, 470413)]