2565380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 5839680

約数和(自身を除く): 3274300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 157, 172, 190, 215, 314, 380, 430, 628, 785, 817, 860, 1570, 1634, 2983, 3140, 3268, 4085, 5966, 6751, 8170, 11932, 13502, 14915, 16340, 27004, 29830, 33755, 59660, 67510, 128269, 135020, 256538, 513076, 641345, 1282690, 2565380]

約数ペア:

[(1, 2565380), (2, 1282690), (4, 641345), (5, 513076), (10, 256538), (19, 135020), (20, 128269), (38, 67510), (43, 59660), (76, 33755), (86, 29830), (95, 27004), (157, 16340), (172, 14915), (190, 13502), (215, 11932), (314, 8170), (380, 6751), (430, 5966), (628, 4085), (785, 3268), (817, 3140), (860, 2983), (1570, 1634)]