20397650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4483}}^1$

素因数の和:4515

約数の個数: 48

約数和(自身を含む): 46705344

約数和(自身を除く): 26307694

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 455, 650, 910, 2275, 4483, 4550, 8966, 22415, 31381, 44830, 58279, 62762, 112075, 116558, 156905, 224150, 291395, 313810, 407953, 582790, 784525, 815906, 1456975, 1569050, 2039765, 2913950, 4079530, 10198825, 20397650]

約数ペア:

[(1, 20397650), (2, 10198825), (5, 4079530), (7, 2913950), (10, 2039765), (13, 1569050), (14, 1456975), (25, 815906), (26, 784525), (35, 582790), (50, 407953), (65, 313810), (70, 291395), (91, 224150), (130, 156905), (175, 116558), (182, 112075), (325, 62762), (350, 58279), (455, 44830), (650, 31381), (910, 22415), (2275, 8966), (4483, 4550)]