25233320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{397}}^1$

素因数の和:642

約数の個数: 64

約数和(自身を含む): 65335680

約数和(自身を除く): 40102360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 227, 280, 397, 454, 794, 908, 1135, 1588, 1589, 1816, 1985, 2270, 2779, 3176, 3178, 3970, 4540, 5558, 6356, 7940, 7945, 9080, 11116, 12712, 13895, 15880, 15890, 22232, 27790, 31780, 55580, 63560, 90119, 111160, 180238, 360476, 450595, 630833, 720952, 901190, 1261666, 1802380, 2523332, 3154165, 3604760, 5046664, 6308330, 12616660, 25233320]

約数ペア:

[(1, 25233320), (2, 12616660), (4, 6308330), (5, 5046664), (7, 3604760), (8, 3154165), (10, 2523332), (14, 1802380), (20, 1261666), (28, 901190), (35, 720952), (40, 630833), (56, 450595), (70, 360476), (140, 180238), (227, 111160), (280, 90119), (397, 63560), (454, 55580), (794, 31780), (908, 27790), (1135, 22232), (1588, 15890), (1589, 15880), (1816, 13895), (1985, 12712), (2270, 11116), (2779, 9080), (3176, 7945), (3178, 7940), (3970, 6356), (4540, 5558)]