13237240

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 31104000

約数和(自身を除く): 17866760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 71, 79, 118, 142, 158, 236, 284, 295, 316, 355, 395, 472, 568, 590, 632, 710, 790, 1180, 1420, 1580, 2360, 2840, 3160, 4189, 4661, 5609, 8378, 9322, 11218, 16756, 18644, 20945, 22436, 23305, 28045, 33512, 37288, 41890, 44872, 46610, 56090, 83780, 93220, 112180, 167560, 186440, 224360, 330931, 661862, 1323724, 1654655, 2647448, 3309310, 6618620, 13237240]

約数ペア:

[(1, 13237240), (2, 6618620), (4, 3309310), (5, 2647448), (8, 1654655), (10, 1323724), (20, 661862), (40, 330931), (59, 224360), (71, 186440), (79, 167560), (118, 112180), (142, 93220), (158, 83780), (236, 56090), (284, 46610), (295, 44872), (316, 41890), (355, 37288), (395, 33512), (472, 28045), (568, 23305), (590, 22436), (632, 20945), (710, 18644), (790, 16756), (1180, 11218), (1420, 9322), (1580, 8378), (2360, 5609), (2840, 4661), (3160, 4189)]