402858260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{40529}}^1$

素因数の和:40616

約数の個数: 48

約数和(自身を含む): 980501760

約数和(自身を除く): 577643500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 40529, 81058, 162116, 202645, 283703, 405290, 567406, 810580, 1134812, 1418515, 2837030, 2877559, 5674060, 5755118, 11510236, 14387795, 20142913, 28775590, 40285826, 57551180, 80571652, 100714565, 201429130, 402858260]

約数ペア:

[(1, 402858260), (2, 201429130), (4, 100714565), (5, 80571652), (7, 57551180), (10, 40285826), (14, 28775590), (20, 20142913), (28, 14387795), (35, 11510236), (70, 5755118), (71, 5674060), (140, 2877559), (142, 2837030), (284, 1418515), (355, 1134812), (497, 810580), (710, 567406), (994, 405290), (1420, 283703), (1988, 202645), (2485, 162116), (4970, 81058), (9940, 40529)]