326123720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20231}}^1$

素因数の和:20286

約数の個数: 64

約数和(自身を含む): 815754240

約数和(自身を除く): 489630520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 20231, 40462, 80924, 101155, 161848, 202310, 263003, 404620, 526006, 627161, 809240, 1052012, 1254322, 1315015, 2104024, 2508644, 2630030, 3135805, 5017288, 5260060, 6271610, 8153093, 10520120, 12543220, 16306186, 25086440, 32612372, 40765465, 65224744, 81530930, 163061860, 326123720]

約数ペア:

[(1, 326123720), (2, 163061860), (4, 81530930), (5, 65224744), (8, 40765465), (10, 32612372), (13, 25086440), (20, 16306186), (26, 12543220), (31, 10520120), (40, 8153093), (52, 6271610), (62, 5260060), (65, 5017288), (104, 3135805), (124, 2630030), (130, 2508644), (155, 2104024), (248, 1315015), (260, 1254322), (310, 1052012), (403, 809240), (520, 627161), (620, 526006), (806, 404620), (1240, 263003), (1612, 202310), (2015, 161848), (3224, 101155), (4030, 80924), (8060, 40462), (16120, 20231)]