20705230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{373}}^1$

素因数の和:461

約数の個数: 64

約数和(自身を含む): 46747008

約数和(自身を除く): 26041778

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 61, 65, 70, 91, 122, 130, 182, 305, 373, 427, 455, 610, 746, 793, 854, 910, 1586, 1865, 2135, 2611, 3730, 3965, 4270, 4849, 5222, 5551, 7930, 9698, 11102, 13055, 22753, 24245, 26110, 27755, 33943, 45506, 48490, 55510, 67886, 113765, 159271, 169715, 227530, 295789, 318542, 339430, 591578, 796355, 1478945, 1592710, 2070523, 2957890, 4141046, 10352615, 20705230]

約数ペア:

[(1, 20705230), (2, 10352615), (5, 4141046), (7, 2957890), (10, 2070523), (13, 1592710), (14, 1478945), (26, 796355), (35, 591578), (61, 339430), (65, 318542), (70, 295789), (91, 227530), (122, 169715), (130, 159271), (182, 113765), (305, 67886), (373, 55510), (427, 48490), (455, 45506), (610, 33943), (746, 27755), (793, 26110), (854, 24245), (910, 22753), (1586, 13055), (1865, 11102), (2135, 9698), (2611, 7930), (3730, 5551), (3965, 5222), (4270, 4849)]