1961821720

素因数分解:

$2^3\times 5^1\times {\mathrm{1657}}^1\times {\mathrm{29599}}^1$

素因数の和:31267

約数の個数: 32

約数和(自身を含む): 4416912000

約数和(自身を除く): 2455090280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1657, 3314, 6628, 8285, 13256, 16570, 29599, 33140, 59198, 66280, 118396, 147995, 236792, 295990, 591980, 1183960, 49045543, 98091086, 196182172, 245227715, 392364344, 490455430, 980910860, 1961821720]

約数ペア:

[(1, 1961821720), (2, 980910860), (4, 490455430), (5, 392364344), (8, 245227715), (10, 196182172), (20, 98091086), (40, 49045543), (1657, 1183960), (3314, 591980), (6628, 295990), (8285, 236792), (13256, 147995), (16570, 118396), (29599, 66280), (33140, 59198)]