81919320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97523}}^1$

素因数の和:97544

約数の個数: 64

約数和(自身を含む): 280869120

約数和(自身を除く): 198949800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 97523, 195046, 292569, 390092, 487615, 585138, 682661, 780184, 975230, 1170276, 1365322, 1462845, 1950460, 2047983, 2340552, 2730644, 2925690, 3413305, 3900920, 4095966, 5461288, 5851380, 6826610, 8191932, 10239915, 11702760, 13653220, 16383864, 20479830, 27306440, 40959660, 81919320]

約数ペア:

[(1, 81919320), (2, 40959660), (3, 27306440), (4, 20479830), (5, 16383864), (6, 13653220), (7, 11702760), (8, 10239915), (10, 8191932), (12, 6826610), (14, 5851380), (15, 5461288), (20, 4095966), (21, 3900920), (24, 3413305), (28, 2925690), (30, 2730644), (35, 2340552), (40, 2047983), (42, 1950460), (56, 1462845), (60, 1365322), (70, 1170276), (84, 975230), (105, 780184), (120, 682661), (140, 585138), (168, 487615), (210, 390092), (280, 292569), (420, 195046), (840, 97523)]