727720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 1969920

約数和(自身を除く): 1242200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 113, 115, 140, 161, 184, 226, 230, 280, 322, 452, 460, 565, 644, 791, 805, 904, 920, 1130, 1288, 1582, 1610, 2260, 2599, 3164, 3220, 3955, 4520, 5198, 6328, 6440, 7910, 10396, 12995, 15820, 18193, 20792, 25990, 31640, 36386, 51980, 72772, 90965, 103960, 145544, 181930, 363860, 727720]

約数ペア:

[(1, 727720), (2, 363860), (4, 181930), (5, 145544), (7, 103960), (8, 90965), (10, 72772), (14, 51980), (20, 36386), (23, 31640), (28, 25990), (35, 20792), (40, 18193), (46, 15820), (56, 12995), (70, 10396), (92, 7910), (113, 6440), (115, 6328), (140, 5198), (161, 4520), (184, 3955), (226, 3220), (230, 3164), (280, 2599), (322, 2260), (452, 1610), (460, 1582), (565, 1288), (644, 1130), (791, 920), (805, 904)]