2163460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 5016816

約数和(自身を除く): 2853356

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 157, 212, 260, 265, 314, 530, 628, 689, 785, 1060, 1378, 1570, 2041, 2756, 3140, 3445, 4082, 6890, 8164, 8321, 10205, 13780, 16642, 20410, 33284, 40820, 41605, 83210, 108173, 166420, 216346, 432692, 540865, 1081730, 2163460]

約数ペア:

[(1, 2163460), (2, 1081730), (4, 540865), (5, 432692), (10, 216346), (13, 166420), (20, 108173), (26, 83210), (52, 41605), (53, 40820), (65, 33284), (106, 20410), (130, 16642), (157, 13780), (212, 10205), (260, 8321), (265, 8164), (314, 6890), (530, 4082), (628, 3445), (689, 3140), (785, 2756), (1060, 2041), (1378, 1570)]