81990240

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{170813}}^1$

素因数の和:170831

約数の個数: 48

約数和(自身を含む): 258270768

約数和(自身を除く): 176280528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 170813, 341626, 512439, 683252, 854065, 1024878, 1366504, 1708130, 2049756, 2562195, 2733008, 3416260, 4099512, 5124390, 5466016, 6832520, 8199024, 10248780, 13665040, 16398048, 20497560, 27330080, 40995120, 81990240]

約数ペア:

[(1, 81990240), (2, 40995120), (3, 27330080), (4, 20497560), (5, 16398048), (6, 13665040), (8, 10248780), (10, 8199024), (12, 6832520), (15, 5466016), (16, 5124390), (20, 4099512), (24, 3416260), (30, 2733008), (32, 2562195), (40, 2049756), (48, 1708130), (60, 1366504), (80, 1024878), (96, 854065), (120, 683252), (160, 512439), (240, 341626), (480, 170813)]