2148580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 5241600

約数和(自身を除く): 3093020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 149, 206, 298, 412, 515, 596, 721, 745, 1030, 1043, 1442, 1490, 2060, 2086, 2884, 2980, 3605, 4172, 5215, 7210, 10430, 14420, 15347, 20860, 30694, 61388, 76735, 107429, 153470, 214858, 306940, 429716, 537145, 1074290, 2148580]

約数ペア:

[(1, 2148580), (2, 1074290), (4, 537145), (5, 429716), (7, 306940), (10, 214858), (14, 153470), (20, 107429), (28, 76735), (35, 61388), (70, 30694), (103, 20860), (140, 15347), (149, 14420), (206, 10430), (298, 7210), (412, 5215), (515, 4172), (596, 3605), (721, 2980), (745, 2884), (1030, 2086), (1043, 2060), (1442, 1490)]