20119220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{839}}^1$

素因数の和:968

約数の個数: 48

約数和(自身を含む): 46569600

約数和(自身を除く): 26450380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 839, 1090, 1199, 1678, 2180, 2398, 3356, 4195, 4796, 5995, 8390, 9229, 11990, 16780, 18458, 23980, 36916, 46145, 91451, 92290, 182902, 184580, 365804, 457255, 914510, 1005961, 1829020, 2011922, 4023844, 5029805, 10059610, 20119220]

約数ペア:

[(1, 20119220), (2, 10059610), (4, 5029805), (5, 4023844), (10, 2011922), (11, 1829020), (20, 1005961), (22, 914510), (44, 457255), (55, 365804), (109, 184580), (110, 182902), (218, 92290), (220, 91451), (436, 46145), (545, 36916), (839, 23980), (1090, 18458), (1199, 16780), (1678, 11990), (2180, 9229), (2398, 8390), (3356, 5995), (4195, 4796)]