19796270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:197

約数の個数: 64

約数和(自身を含む): 40824000

約数和(自身を除く): 21027730

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 59, 65, 89, 118, 130, 145, 178, 290, 295, 377, 445, 590, 754, 767, 890, 1157, 1534, 1711, 1885, 2314, 2581, 3422, 3770, 3835, 5162, 5251, 5785, 7670, 8555, 10502, 11570, 12905, 17110, 22243, 25810, 26255, 33553, 44486, 52510, 67106, 68263, 111215, 136526, 152279, 167765, 222430, 304558, 335530, 341315, 682630, 761395, 1522790, 1979627, 3959254, 9898135, 19796270]

約数ペア:

[(1, 19796270), (2, 9898135), (5, 3959254), (10, 1979627), (13, 1522790), (26, 761395), (29, 682630), (58, 341315), (59, 335530), (65, 304558), (89, 222430), (118, 167765), (130, 152279), (145, 136526), (178, 111215), (290, 68263), (295, 67106), (377, 52510), (445, 44486), (590, 33553), (754, 26255), (767, 25810), (890, 22243), (1157, 17110), (1534, 12905), (1711, 11570), (1885, 10502), (2314, 8555), (2581, 7670), (3422, 5785), (3770, 5251), (3835, 5162)]