257095320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{20023}}^1$

素因数の和:20144

約数の個数: 64

約数和(自身を含む): 778533120

約数和(自身を除く): 521437800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 107, 120, 214, 321, 428, 535, 642, 856, 1070, 1284, 1605, 2140, 2568, 3210, 4280, 6420, 12840, 20023, 40046, 60069, 80092, 100115, 120138, 160184, 200230, 240276, 300345, 400460, 480552, 600690, 800920, 1201380, 2142461, 2402760, 4284922, 6427383, 8569844, 10712305, 12854766, 17139688, 21424610, 25709532, 32136915, 42849220, 51419064, 64273830, 85698440, 128547660, 257095320]

約数ペア:

[(1, 257095320), (2, 128547660), (3, 85698440), (4, 64273830), (5, 51419064), (6, 42849220), (8, 32136915), (10, 25709532), (12, 21424610), (15, 17139688), (20, 12854766), (24, 10712305), (30, 8569844), (40, 6427383), (60, 4284922), (107, 2402760), (120, 2142461), (214, 1201380), (321, 800920), (428, 600690), (535, 480552), (642, 400460), (856, 300345), (1070, 240276), (1284, 200230), (1605, 160184), (2140, 120138), (2568, 100115), (3210, 80092), (4280, 60069), (6420, 40046), (12840, 20023)]