81220592

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^2$

素因数の和:222

約数の個数: 60

約数和(自身を含む): 171183240

約数和(自身を除く): 89962648

約数列:

[1, 2, 4, 8, 16, 19, 38, 53, 71, 76, 106, 142, 152, 212, 284, 304, 424, 568, 848, 1007, 1136, 1349, 2014, 2698, 3763, 4028, 5041, 5396, 7526, 8056, 10082, 10792, 15052, 16112, 20164, 21584, 30104, 40328, 60208, 71497, 80656, 95779, 142994, 191558, 267173, 285988, 383116, 534346, 571976, 766232, 1068692, 1143952, 1532464, 2137384, 4274768, 5076287, 10152574, 20305148, 40610296, 81220592]

約数ペア:

[(1, 81220592), (2, 40610296), (4, 20305148), (8, 10152574), (16, 5076287), (19, 4274768), (38, 2137384), (53, 1532464), (71, 1143952), (76, 1068692), (106, 766232), (142, 571976), (152, 534346), (212, 383116), (284, 285988), (304, 267173), (424, 191558), (568, 142994), (848, 95779), (1007, 80656), (1136, 71497), (1349, 60208), (2014, 40328), (2698, 30104), (3763, 21584), (4028, 20164), (5041, 16112), (5396, 15052), (7526, 10792), (8056, 10082)]