163685890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{1291}}^1$

素因数の和:1738

約数の個数: 32

約数和(自身を含む): 305118720

約数和(自身を除く): 141432830

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 409, 818, 1291, 2045, 2582, 4090, 6455, 12679, 12910, 25358, 40021, 63395, 80042, 126790, 200105, 400210, 528019, 1056038, 2640095, 5280190, 16368589, 32737178, 81842945, 163685890]

約数ペア:

[(1, 163685890), (2, 81842945), (5, 32737178), (10, 16368589), (31, 5280190), (62, 2640095), (155, 1056038), (310, 528019), (409, 400210), (818, 200105), (1291, 126790), (2045, 80042), (2582, 63395), (4090, 40021), (6455, 25358), (12679, 12910)]