19977270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 49641984

約数和(自身を除く): 29664714

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 83, 113, 142, 166, 213, 226, 249, 339, 355, 415, 426, 498, 565, 678, 710, 830, 1065, 1130, 1245, 1695, 2130, 2490, 3390, 5893, 8023, 9379, 11786, 16046, 17679, 18758, 24069, 28137, 29465, 35358, 40115, 46895, 48138, 56274, 58930, 80230, 88395, 93790, 120345, 140685, 176790, 240690, 281370, 665909, 1331818, 1997727, 3329545, 3995454, 6659090, 9988635, 19977270]

約数ペア:

[(1, 19977270), (2, 9988635), (3, 6659090), (5, 3995454), (6, 3329545), (10, 1997727), (15, 1331818), (30, 665909), (71, 281370), (83, 240690), (113, 176790), (142, 140685), (166, 120345), (213, 93790), (226, 88395), (249, 80230), (339, 58930), (355, 56274), (415, 48138), (426, 46895), (498, 40115), (565, 35358), (678, 29465), (710, 28137), (830, 24069), (1065, 18758), (1130, 17679), (1245, 16046), (1695, 11786), (2130, 9379), (2490, 8023), (3390, 5893)]