20935040

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4673}}^1$

素因数の和:4699

約数の個数: 64

約数和(自身を含む): 57209760

約数和(自身を除く): 36274720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 4673, 9346, 18692, 23365, 32711, 37384, 46730, 65422, 74768, 93460, 130844, 149536, 163555, 186920, 261688, 299072, 327110, 373840, 523376, 598144, 654220, 747680, 1046752, 1308440, 1495360, 2093504, 2616880, 2990720, 4187008, 5233760, 10467520, 20935040]

約数ペア:

[(1, 20935040), (2, 10467520), (4, 5233760), (5, 4187008), (7, 2990720), (8, 2616880), (10, 2093504), (14, 1495360), (16, 1308440), (20, 1046752), (28, 747680), (32, 654220), (35, 598144), (40, 523376), (56, 373840), (64, 327110), (70, 299072), (80, 261688), (112, 186920), (128, 163555), (140, 149536), (160, 130844), (224, 93460), (280, 74768), (320, 65422), (448, 46730), (560, 37384), (640, 32711), (896, 23365), (1120, 18692), (2240, 9346), (4480, 4673)]