2019928988

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31379}}^1$

素因数の和:31431

約数の個数: 72

約数和(自身を含む): 4674364800

約数和(自身を除く): 2654435812

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 76, 77, 121, 133, 154, 209, 242, 266, 308, 418, 484, 532, 836, 847, 1463, 1694, 2299, 2926, 3388, 4598, 5852, 9196, 16093, 31379, 32186, 62758, 64372, 125516, 219653, 345169, 439306, 596201, 690338, 878612, 1192402, 1380676, 2384804, 2416183, 3796859, 4173407, 4832366, 6558211, 7593718, 8346814, 9664732, 13116422, 15187436, 16693628, 26232844, 26578013, 45907477, 53156026, 72140321, 91814954, 106312052, 144280642, 183629908, 288561284, 504982247, 1009964494, 2019928988]

約数ペア:

[(1, 2019928988), (2, 1009964494), (4, 504982247), (7, 288561284), (11, 183629908), (14, 144280642), (19, 106312052), (22, 91814954), (28, 72140321), (38, 53156026), (44, 45907477), (76, 26578013), (77, 26232844), (121, 16693628), (133, 15187436), (154, 13116422), (209, 9664732), (242, 8346814), (266, 7593718), (308, 6558211), (418, 4832366), (484, 4173407), (532, 3796859), (836, 2416183), (847, 2384804), (1463, 1380676), (1694, 1192402), (2299, 878612), (2926, 690338), (3388, 596201), (4598, 439306), (5852, 345169), (9196, 219653), (16093, 125516), (31379, 64372), (32186, 62758)]