245312920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{1093}}^1$

素因数の和:1316

約数の個数: 64

約数和(自身を含む): 573431040

約数和(自身を除く): 328118120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 181, 248, 310, 362, 620, 724, 905, 1093, 1240, 1448, 1810, 2186, 3620, 4372, 5465, 5611, 7240, 8744, 10930, 11222, 21860, 22444, 28055, 33883, 43720, 44888, 56110, 67766, 112220, 135532, 169415, 197833, 224440, 271064, 338830, 395666, 677660, 791332, 989165, 1355320, 1582664, 1978330, 3956660, 6132823, 7913320, 12265646, 24531292, 30664115, 49062584, 61328230, 122656460, 245312920]

約数ペア:

[(1, 245312920), (2, 122656460), (4, 61328230), (5, 49062584), (8, 30664115), (10, 24531292), (20, 12265646), (31, 7913320), (40, 6132823), (62, 3956660), (124, 1978330), (155, 1582664), (181, 1355320), (248, 989165), (310, 791332), (362, 677660), (620, 395666), (724, 338830), (905, 271064), (1093, 224440), (1240, 197833), (1448, 169415), (1810, 135532), (2186, 112220), (3620, 67766), (4372, 56110), (5465, 44888), (5611, 43720), (7240, 33883), (8744, 28055), (10930, 22444), (11222, 21860)]